Midpoint - Card Centering Tool

Is The walls are moving! #171 worth grading?

Star Wars · Star Wars 1977 Topps · full price guide →

Worth grading — even a PSA 9 beats raw

A PSA 10 The walls are moving! #171 sells for $348 against $1.75 raw: a $346 spread, 199× the ungraded price. Even a PSA 9 ($69.99) clears the raw price after an economy-tier ~$25 fee, so a near-miss still comes out ahead. Centering is the usual reason a clean copy misses the 10 — measure it before you submit.

Raw (NM)
$1.75
PSA 10
$348
PSA 9
$69.99
Gem premium
199×
As of
Aug 16, 2026

Break-even by outcome and fee

The walls are moving! #171: net result of grading versus selling raw, by outcome and fee tier
If it comes back…Sells forEconomy / bulk (~$25.00)Standard (~$50.00)Express (~$150)
Gem — PSA 10$348+$321+$296+$196
PSA 9$69.99+$43.24+$18.24−$81.76
PSA 8$30.70+$3.95−$21.05−$121

Net = sale price − $1.75 raw value − fee. Fee tiers are illustrative; plug your grader's current price into the calculator below.

Expected value — how often does it need to gem?

The walls are moving! #171: expected value of submitting by gem probability
Chance it gemsExpected saleExpected net (standard fee)
25%$139+$87.66
50%$209+$157
75%$278+$227

Even a miss (a 9) beats selling raw after the standard fee — the gem rate only decides how much you win by.

Which grader pays the most — and what a 10 takes

All centering standards
The walls are moving! #171: top-grade value by grading company with centering tolerance
Grader10 sells forvs bestFront centering for a 10Back
BGS 10$452best55/4570/30
PSA 10$348−$10455/4575/25
CGC 10$209−$24355/4575/25
SGC 10$209−$24355/4575/25

Tolerances are each company's published centering standard for its top grade; surface, corners and edges must also be clean. Centering is the one you can measure yourself before you pay.

The walls are moving! #171 graded prices by company and grade
GradePSACGCBGSSGCGraded
10$348$209$452$209
9.5$77.00
9$69.99
8$30.70
7$8.50

Run your own numbers

Should I pay this?

Enter the seller’s asking price to see your net outcome per grade.

Other Star Wars 1977 Topps cards worth checking

Full set checklist

Grading The walls are moving! #171 — FAQ

Is The walls are moving! #171 worth grading?

A PSA 10 The walls are moving! #171 sells for $348 against $1.75 raw: a $346 spread, 199× the ungraded price. Even a PSA 9 ($69.99) clears the raw price after an economy-tier ~$25 fee, so a near-miss still comes out ahead. Centering is the usual reason a clean copy misses the 10 — measure it before you submit.

How much is a PSA 10 The walls are moving! #171 worth compared with raw?

A PSA 10 The walls are moving! #171 (Star Wars 1977 Topps) sells for about $348 versus $1.75 for a raw near-mint copy — a 199× premium as of Aug 16, 2026.

Which grading company is best for The walls are moving! #171?

By resale value, BGS 10 leads at $452, ahead of PSA 10 at $348. Fees and turnaround differ, so the best-paying label is not always the best net.

What centering does The walls are moving! #171 need for a BGS 10?

BGS publishes 55/45 front and 70/30 back centering as the tolerance for a 10 (Gem Mint). Off-center copies are capped below the top grade regardless of surface — measure yours before paying the fee.

Is your Star Wars card centered well enough to grade?

Centering makes or breaks a PSA 10. Scan any card with Midpoint to measure its exact centering, get a grade estimate, and see what your copy is actually worth.

Check my card free