1. I think it is primarily because NY was (and is) such a non-permissive state. I acquired a "pistol permit" in NY back in 1981 and it was an unbelievably intrusive process. It involved fingerprinting, interviewing of neighbors and character references, "purchase voucher" to actually buy a handgun and then registration of said handgun. After nine months of waiting (of which only about one month was needed for the process, they just tacked-on an eight month waiting period) the "permit" was issued. I was only permitted to possess the handguns in my home and transport them to and from a range. For the next 25 years I was allowed to carry concealed to and from the range, but that was it.
We moved to NH in 2008 and I was required to surrender my NY permit. I went to the local PD, filled out the forms and a week later had a full concealed carry license to carry virtually anywhere at anytime. No purchase vouchers, no registration, no attitude that was heaped upon us at the Suffolk County pistol licensing bureau. Live Free or Die, my God I was finally home, but now we have to fight the Massholes moving here who want to turn NH into Suffolk County.
2. I was never really into shooting at all. The year my wife and I were married, our house was broken into while we were asleep in the bedroom. I guess technically it was a home invasion as the intruders opened our bedroom door to look in, only to be turned away by Coco, our German Shepard-Collie mix. My wife woke me up to Coco's low, menacing growl and it was then I realized we weren't alone in the house. I scrambled for an old Lefever shotgun buried somewhere in the closet but the intruders were gone by the time I was armed. It was at that point I became interested in shooting, and ended up joining a Bullseye shooting league a few years later (after the arduous pistol permit process).
I am very much a mechanically inclined person and truly appreciate fine mechanical things. Along with cameras and cars, firearms are also of great interest to me. The combination of enjoying shooting and appreciation of fine handguns (I was a HUGE fan of S&W K-frames) was enough to anchor my interest.
3. It's not only a pistol I carry, but in case you haven't noticed I'm also a flashlight nerd. I find the good ones interesting for the same reasons as guns and I EDC two lights. I also carry a knife and a spare Li-ion cell for the light on my person. In my car I have another light in the console, and then a roadside tool kit in the trunk that includes an assortment of tools, a 12V compressor, a tire plug kit, a raincoat, fire extinguisher, etc.
Finally, once we moved to NH and I was able to carry without restriction, I knew it was time to cleanse myself of derp. After spending some time surfing as a guest, I became a member on this board. Like others, I consider myself a student of the pistol and of the responsibilities of carrying a concealed weapon. I suspect like others, P-F.com has been a valuable resource for me.