Hi! I'm new to the boards and do not actually own an M&P but am interested in getting one. I'm looking at the carry kit that includes the holster, mag holder and 3 magazines since I'll be using it to shoot in competition. A shop locally has it but the price of $599 seems pretty high. I've looked on Gunbroker and Gunsamerica and it seems the M&P prices are all over the place. $599 too high?