Look at you history and then make your own mind up
In my very humble opinion, I think that going all in with anything, be it AA or KK, pre-flop in the first 10-20 hands of a mtt is pretty much
gambling.
If I look back (and this is just me) at all the times I have had those holy grail pre-flop pockets, calling to go all in before everyone has settled down, I have probably only won 30% of those hands.
For every person that is all in before you, you have that much less of a chance to win. WHY???
Because pretty much any flop to 4 or 5 sets of any pocket cards will kick your but because there are so many more cards on the table in play.
Poker is a game of skill where you play hands based on skill, experience, odds and mathematical equasions, and if you push with AA or KK pre-flop to so many all-inners, you wittle your odds away.
Ok, with all that ranting out of the way, ask me if I have ever folded AA or KK pre-flop, ever...
Are you nuts, do you know how hard that is?