you do realize the GSSF certificate is for a "Blue Label" Glock, that, military and police buy...??...at reduced pricings?
and frankly too, the stores don't have to see it for what the Blue Label prices are, they can still "add on" store markups for that profit margin. the GSSF retail pricing, is only a suggestion, not etched into stone........then too, taxes still apply, FFL fee's etc.....
also too, they might not have all the Glocks in stock, that are a "Blue Label", and maybe the klutz behind the counter is unaware of "Blue Label".....???
i have bought 2 Glocks (G-21 and a G-30) with that GSSF certificate, and i can assure you, neither one was sold at GSSF suggested retail......i think each was like $50.00 more than the pricing list....but still lower then non GSSF bought guns to customers with out that certificate.