Official Goldback exchange rate for 07/14/2023 is $4.04, up one cent from the last update.
After a review of online sellers' prices, the best price for an in-stock 1 Goldback is $3.69 over at Defy The Grid http://defythegrid.com
The best price for an in-stock 50 goldback is $178.56 over APMEX
https://apmex.com/product/255963/50-wyoming-goldback-aurum-gold-foil-note-24k