A deepstack tournament situation

From last night's Mookie, your standard enormous coinflip situation for review.

I hate gettting all my chips in the middle preflop this deep (50BBs) with AK, but this was an exception since I figured this opponent was highly likely to be making this move only with medium-to-large pairs and big ace-x hands, but would not shove AA or KK for fear of losing all of his customers. This is a high-variance gamble for me to take, but the reward for winning this flip is of tremendous strategic value. Since I do genuinely have the top of my range here (KK+, AK), this pushes my decision towards calling, but the countervailing factor is tournament survival. I could afford to pass up a marginal situation here and try to maneuver my chips in the middle with a bigger edge.

Context: I had opened the previous hand in EP with AQs and chipped up nicely when I bluffed unimproved in position vs. a big blind defender when the board four-flushed (clubs always get there). So I was happy to see AK the very next hand since I was even more likely to get action.

Long-term I believe calls like this are -EV. With only 240 invested and 4K behind I could easily -- and often would -- have folded and looked for a better spot to chip up.

As an aside, I think the villain here played QQ about as sub-optimally as I can imagine; results notwithstanding. He is basically turning his cards face-up and letting me play with virtually perfect information against him. Last I checked, poker was supposed to be about deception (unless of course you are able to put in the last raise with aces).

I also used PokerStove to see what the numbers said after the fact. I incorporated a couple of assumptions when estimating villain's range of hands: villain didn't shove with AA or KK or small pairs; and that he could make this move with some big aces.

equity win tie pots won pots tied
Hand 0: 48.017% 40.16% 07.85% 41263988 8067397.00
{QQ-77, AJs+, AQo+ }
Hand 1: 51.983% 44.13% 07.85% 45339458 8067397.00
{AcKh }

And here is the actual result:

Full Tilt Poker, NL Hold'em Tournament, 40/80 Blinds, 8 Players

CO: 7,665
BTN: 4,425
SB: 2,175
BB: 8,455
UTG: 9,455
Hero (UTG+1): 4,405
MP1: 2,560
MP2: 2,275

Pre-Flop: (120) K A dealt to Hero (UTG+1)
UTG calls 80, Hero raises to 240, MP1 calls 240, MP2 folds, CO raises to 7,665 and is All-In, 4 folds, Hero calls 4,165 and is All-In, MP1 folds

Flop: (9,250) 6 9 J (2 Players - 1 is All-In)
Turn: (9,250) T (2 Players - 1 is All-In)
River: (9,250) 4 (2 Players - 1 is All-In)
Results: 9,250 Pot

CO showed Q Q (a pair of Queens) and WON 9,250 (+4,845 NET)

Hero showed K A (Ace King high) and LOST (-4,405 NET)