Maintenance #83, 1999-2000 Copyright, Base Set
- Card number: #83/102
- ·Rarity: Uncommon
- ·Finish: Non-Holo
A PSA 9 Maintenance #83 1999-2000 Copyright from Base Set has a TCGBerg fair value of $49 as of Nov 14, 2026. It rests on 6 recorded sales, the latest on Oct 1, 2026. PSA has graded 25 copies at PSA 9. Sales evidence is limited, so treat this value as a rough estimate.
TCGBerg Algorithm (estimated from recorded sales).
6 sales · latest Oct 1, 2026
- Population · PSA 9
- 25
- Market cap
- $1.2K
- Volatility
- 3.0%
- YTD
- ↓ 12.8%
- Sales evidence
- Limited
TCGBerg fair value · PSA 9
$49
Based on 6 recorded sales. Latest sale: Oct 1, 2026.
Price history
Weekly fair value over time, plus a confidence band around it: how precisely we can pin the value, which tightens as more sales confirm it. Dots mark individual sales, snapped to their week: red when above fair value (a premium), green when below (a deal), hollow when flagged as an outlier. Switch the active grade with the selector above.Weekly fair value for PSA 9. Shaded area is the confidence band: how precisely we can pin the value; it tightens as more sales confirm it. Dots are individual sales. Confidence band: how precisely we can pin the fair value. It widens when sales scatter and narrows as more sales back the value up. The dots show the actual sale prices.
What the evidence says
The last PSA 9 sale, $36 on Oct 1, 2026, sits 26.3% below the $49 fair value. The value rests on 6 recorded PSA 9 sales. The latest sale ran below the recent run: the last 4 PSA 9 sales averaged $51, within 3.8% of the value. Its confidence band runs from $38 to $59. A PSA 10 ($373) is worth 7.6 times a PSA 9 ($49). Over the past 30 days the PSA 9 value has risen 5.0%. With limited sales evidence, read the gap and the band as rough guides.
TCGBerg fair value by grade
Side-by-side comparison of value across every grade and ungraded condition we track for this printing. The bar chart uses a log scale so raw and gem-mint fit on one axis. Solid bars are the TCGBerg fair value, modelled from recorded sales. Hatched bars are the latest market price instead, shown for ungraded conditions that trade too rarely for us to price one honestly.Value at each grade and ungraded condition. Log scale. Tap a row to switch the whole page.
Behind the scenes
How the published fair value for this grade was produced: the sales it rests on, how they were put together, and every recorded change afterwards. It describes one saved calculation, not a live recomputation.What goes into this price, and how much we know.
Recent sales
6 trackedEach sale against the grade's fair value on the day it sold.
| Date | Grade | Venue | Price | vs fair value |
|---|---|---|---|---|
| Oct 1, 2026 | PSA9 | eBay | $36 | below fair value by -19.0% |
| Sep 25, 2026 | PSA9 | eBay | $40 | below fair value by -15.5% |
| Jun 24, 2026 | PSA7 | eBay | $5.00 | below fair value by -36.1% |
| Jun 1, 2026 | PSA9 | eBay | $67 | below fair value by -6.5% |
| Feb 23, 2026 | PSA9 | eBay | $22 | below fair value by -39.3% |
- $36Oct 1, 2026 · via eBayPSA9↓below fair value by 19.0%
- $40Sep 25, 2026 · via eBayPSA9↓below fair value by 15.5%
- $5.00Jun 24, 2026 · via eBayPSA7↓below fair value by 36.1%
- $67Jun 1, 2026 · via eBayPSA9↓below fair value by 6.5%
- $22Feb 23, 2026 · via eBayPSA9↓below fair value by 39.3%
| Dec 15, 2025 | PSA10 | Fanatics Collect | $168 | below fair value by -22.4% |
- $168PSA10↓below fair value by 22.4%
1 more sale with Pro
Up to 20 recent sales, each with its venue and its gap to fair value.
↓Includes a sale 22.4% below fair value
All grades matrix
Every grade we track for this printing. Click any column header to sort; the rightmost column jumps you to listings for that grade.
- CGC7$211d ↑0.9%7d ↑7.7%30d ↑3.0%
- Pop
- 0
- Mcap
- -
- Evidence
- Sparse
- Last
- -
- PSA10$3731d ·0.0%7d ·0.0%30d ↑5.0%
- Pop
- 18
- Mcap
- $6.7K
- Evidence
- Sparse
- Last
- $168
- PSA9$491d ·0.0%7d ·0.0%30d ↑5.0%
- Pop
- 25
- Mcap
- $1.2K
- Evidence
- Limited
- Last
- $36
| CGC7 | $21 | 0 | - | ↑up 0.9% | ↑up 7.7% | ↑up 3.0% | ↑up 2.4% | Sparse | - |
| PSA10 | $373 | 18 | $6.7K | 0.0% | 0.0% | ↑up 5.0% | ↑up 1.7% | Sparse | $16811mo ago |
| PSA9 | $49 | 25 | $1.2K | 0.0% | 0.0% | ↑up 5.0% | ↓down 36.4% | Limited | $361mo ago |
| PSA8 | $30 | 6 | $182 | 0.0% | 0.0% | ↑up 3.4% | ↑up 93.7% | Sparse | $202y ago |
| PSA7 | $11 | 5 | $56 | 0.0% | ↑up 0.3% | ↓down 9.8% | ↑up 28.2% | Sparse | $5.005mo ago |
| PSA6 | $2.00 | 0 | - | 0.0% | ↑up 11.7% | ↑up 29.0% | ↑up 26.6% | Sparse | - |
Graded population report
How Maintenance's graded copies are spread across grades. Each bar is the number of copies graded at that grade; the percentage is that grade's share of the total graded population. These are recorded graded copies, not the total print run. A smaller population alone does not establish a price premium.82 graded copies of Maintenance 1999-2000 Copyright across 13 grades. The selected grade is highlighted.
PSA 9 makes up 30% of graded copies: 25 of 82. It’s the most common grade for this card.
Analysis
Maintenance - 1999-2000 Copyright Normal at PSA 10 carries a TCGBerg fair value of $373 as of 2026-11-13. We track a TCGBerg fair value across 6 grades from Base Set, from PSA 6 up to PSA 10. A graded population of 18 copies sits behind the PSA 10 grade. The PSA 10 valuation rests on sparse sales evidence. Over the past 30 days, the PSA 10 TCGBerg fair value has risen 5.0%.