Congrats on the deal! Sounds like you came out ahead only paying $35/ magazine. My last USPc mag cost me $60.I called a LGS to see if there were in stock. I asked the guy, if they had any how much? He told me he had 8 and there's $45/ea. I asked him, "if I bought ALL eight, would he give them to me for $35?". He agreed. The schmuck still made money on them but I got my mags.
When I went in to pick them up he said they were sitting on his shelf for almost 6 months and he had never seen magazines sit so long but in this economy people afford the gun but don't buy the ammo, training or accessories to go along with it."
Since Hk's are such a premium priced gun, maybe this is a good way to deal with LGS's.