I think that's not too bad. I mean think about it, you may get two callers taking your equity down, may lose a buy-in. As it stood you took down a reasonable pot pre flop and then moved on. No biggy.

It is funny though, i think about $1.40 is usually fine but if you sense that you're going to called by more than one caller, better just take it down there with the $2 and IF you get one idiot who calls, then you're in a nice bloated pot with AA.

each situation will be quite different. Lately most of my AA and KK have been folded to me, so that sucks in a different way. Quick tip though, you get AK and 3bet a total unknown and he calls. If you want to play tight, just chill out post flop until you know his game. Maybe even check it down if you miss. Thing is, in a 3bet pot, if you cbet good with air, it's not long before you're somewhat pot committed. Just cool off and wait for a better spot. Trust me, all these spots add up.