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Mario Tennis Fever - Switch: Resale Value and Flip Profit

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Spotted at Costco · July 2026

Mario Tennis Fever - Switch

Costco price

$30

eBay price

$50–$56

Profit after fees

$13

Nationwide stock

In stock at 2 Costco stores in 2 states, ~10 units

Lowest price ($29.97) found in: CA (1), NY (1)

As of Nov 3, 2026, 3:33 PM EST. Counts come from Costco's store inventory and can lag the shelf.

On clearance at 4 Costco stores, checked in the last 48 hours

California (2) · Indiana (1) · New York (1)

CityStorePriceUnits
Irvine, CAIrvine115 TECHNOLOGY DR 92618$29.975
La Mesa, CALa Mesa8125 FLETCHER PKWY 91942$29.975
Indianapolis, INFortune Park9010 MICHIGAN RD 46268$29.975
New York, NYManhattan517 E 117TH ST 10035$29.975

Mario Tennis Fever - Switch is marked down to $30 from $50 at Costco. Based on 57 recent eBay sold listings, it resells for about $50–$56. After eBay's roughly 13% fees, that leaves around $13 per unit before shipping.

Is it worth flipping?

The spread is real, but it only lasts while local stock does. Clearance prices are set store by store, so the same item can be full price a few miles away. Check how many units are on eBay right now before buying more than a few.

Where to find it

Spotted checks Costco inventory store by store, and last found it at 2 stores. The app shows which stores near you have it in stock, how many units are left, and the exact item to ask for.

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Prices change quickly. eBay figures are from recent eBay sold listings and exclude shipping costs you pay as the seller.