I have a decent collection of guns, haven't bought anything for a long time as i dont have anywhere to shoot right now, but i really enjoy the older military bolt action rifles. Have a k98, some Nagants, and a few others. Also have a AR-15, a Hungarian AK and some more modern semi-autos. Guns have a lot of historic value for me and its interesting to read about the history of them. I have a few things on my wish list like a M1 Garand and a SVD but that stuff starts to get crazy expensive so i kinda stopped for the time being.
Best advice i can give though is look into buying ammo online in bulk if your going to shoot a lot as that part of it can cost more then the guns do.