MidpointCard Centering Grading Portfolio App

Is Bob Weiss #128 worth grading?

Basketball · Basketball Cards 1971 Topps · full price guide →

Worth grading — even a PSA 9 beats raw

A PSA 10 Bob Weiss #128 sells for $379 against $1.30 raw: a $378 spread, 292× the ungraded price. Even a PSA 9 ($37.79) 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)
$1.30
PSA 10
$379
PSA 9
$37.79
Gem premium
292×
As of
Sep 2, 2026

Break-even by outcome and fee

Bob Weiss #128: 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$379+$353+$328+$228
PSA 9$37.79+$11.49−$13.51−$114
PSA 8$14.99−$11.31−$36.31−$136

Net = sale price − $1.30 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?

Bob Weiss #128: expected value of submitting by gem probability
Chance it gemsExpected saleExpected net (standard fee)
25%$123+$71.87
50%$209+$157
75%$294+$243

Break-even gem rate at the standard fee: about 4%. Centering is the usual reason a clean copy misses — measure it before you decide.

Which grader pays the most — and what a 10 takes

All centering standards
Bob Weiss #128: top-grade value by grading company with centering tolerance
Grader10 sells forvs bestFront centering for a 10Back
BGS 10$493best55/4570/30
PSA 10$379−$11455/4575/25
CGC 10$228−$26555/4575/25
SGC 10$228−$26555/4575/25

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.

Bob Weiss #128 graded prices by company and grade
GradePSACGCBGSSGCGraded
10$379$228$493$228
9.5$74.09
9$37.79
8$14.99
7$14.00

Swipe the table for the other grading companies →

Run your own numbers

Should I pay this?

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

Other 1971 Topps cards worth checking

Full set checklist

Grading Bob Weiss #128 — FAQ

Is Bob Weiss #128 worth grading?

A PSA 10 Bob Weiss #128 sells for $379 against $1.30 raw: a $378 spread, 292× the ungraded price. Even a PSA 9 ($37.79) 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 Bob Weiss #128 worth compared with raw?

A PSA 10 Bob Weiss #128 (Basketball Cards 1971 Topps) sells for about $379 versus $1.30 for a raw near-mint copy — a 292× premium as of Sep 2, 2026.

Which grading company is best for Bob Weiss #128?

By resale value, BGS 10 leads at $493, ahead of PSA 10 at $379. Fees and turnaround differ, so the best-paying label is not always the best net.

What centering does Bob Weiss #128 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.

What gem rate makes grading Bob Weiss #128 break even?

At a standard ~$50 fee, submitting Bob Weiss #128 breaks even when it gems about 4% of the time (a miss assumed to sell at the PSA 9 price of $37.79).

Best on iPhone & Android

Check your basketball card in the Midpoint app

Scan with your camera to measure centering to the millimeter, get an AI grade with corner and edge close-ups, see what your copy is worth, and track it in your portfolio. Free to start.

Download on the App StoreGet it on Google Play

Or try it on the web →

Best on iPhone & Android

The full Midpoint experience is in the app

Scan with your camera, get AI grades with corner and edge close-ups, issue Grade Certificates, set price alerts, track your portfolio and talk to other collectors — everything here, plus the parts a browser can't do. Free to start.

Download on the App StoreGet it on Google Play