OP, you think you might be an old fuddy duddy try this on:
I actually think .22lr AR's make more sence than their centerfire brothers. Why? I don't want or need an AR for SD/HD and while they do make a fair varmint gun to me they are really just range toys. So if I'm gonna have a range toy or even a gun for some of the fast shooting competitions than it may as well shoot cheap ammo. Hence, make mine a .22lr.
But then I was actually thinkin about buying one a few months ago. Looked, handled and even shot a few. In the end I couldn't justify the added cost over a good ol' 10/22 so I snagged up another one and a couple BX25 mags.