Glocks cost a lot? You can't be serious, they are the biggest STEAL in the industry and as someone else pointed out, the existence of Glock has forced other manufacturers to lower their prices.
Cheap mags, cheap and plentiful spare parts, so easy to work on a chimp could do it, obiqitous accessories (holsters, sights, aftermarket "upgrades"... Glocks are IMO the BEST handgun for defensive purposes. Other handguns may have marginally better accuracy or better ergos or whatever, but simplicity, size advantage, mag capacity, reliability, durability... The Glock cannot be beat, even to this day. Guns like the VP9, Sig 320 or whatever it is and all these new fangled striker guns are nice and all, but give me a Glock!