Official Goldback.com exchange rate for 08/03/2023 remains $4.01 as there has been no update from yesterday's rate.
After a review of online sellers' prices, the best price for an in-stock 1 Goldback is $3.67 over at Defy The Grid http://defythegrid.com
The best price for an in-stock 50 Goldback is $177.38 at APMEX.com
https://apmex.com/product/255963/50-wyoming-goldback-aurum-gold-foil-note-24k