As was said several times, Glocks are stone cold reliable and utilitarian. There are a couple other brands that can claim that as well, but what Glock has they don't, is the cheapest and most available magazines, the most complete aftermarket and OEM parts availability and most holster options. Seriously, Glocks may cost a bit more than say M&Ps, for example, but if you are a person who wants 6 or 7 or 10 or 20 magazines for your firearm, you will soon be saving money by buying a Glock. If you want different sights or trigger, you can find Glock stuff pretty much anywhere. Everyone makes Glock holsters.
It's true that Glock's claim to fame is their reliability and toughness, but their true strength is the availability and low cost of all the stuff for your Glock.

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