It has been my experience that people buy a first handgun out of a whim. They may have a need or a desire, but it seems that many peoples first handguns are more of an accident. I know many people who went into a gun shop with the mindset to buy a specific first pistol, only to leave the shop with something else.
I have a friend who recently bought his first gun...actually two at the same time. He was absolutely dead set on getting a Glock 23. He searched everything he could on Glocks, and specifically the model 23. He went to shop after shop after shop over the period of two months. Eventually, even I stopped going with him...enough was enough. Shit or get off the pot already.
Finally, he calls me up a couple of weeks ago. He bought a Taurus 1911.....pretty much the opposite of a Glock; metal frame, single action, has a true safety, single stack magazine, hammer fired, etc.He tells m,"It just felt so right in my hands." Three minutes after telling me about this purchase, he also told me he bought a Glock 22, also....the big brother of the G23.
I have had similar experiences in buying furniture, computers, and cars. So I guess it should be the same for guns.