Take a serious look at a 5.45 AK. More accurate then 7.62x39, less recoil, cheap ammo. I've had both. I bought an AR in 1994, sold it this past year for almost what I paid. My AK just went out more and I really did not use my AR the last few years. Too many guns I guess. As I've gotten older, the type of shooting I do has changed as has the type of firearm I use. Just like w/ women, there are flavors to fit any taste.
Freedom is not free. The best of us always leave too soon.