Official Goldback.com exchange rate for 07/07/2023 is $4.01, up two cents from yesterday.
After a review of online sellers' prices, the best price for an in-stock 1 Goldback is $3.66 over at Defy The Grid
The best price for an in-stock 50 goldback is $177.06 over APMEX
https://apmex.com/product/255963/50-wyoming-goldback-aurum-gold-foil-note-24k