1 spot before final table: call?

[bleu329]

10 players left in stars $25k guaranteed ($11+R)

first place pays over 10K
10th place pays ~$400

this is the first time the button has pushed outside the blinds. When it was folded to him in the small blind, I had him covered by a lot, and he pushed with K8o and beat my AT. Now he has me covered and pushes from the button. I see AK and call risking my tournament to try to get in the top 2 for the final table. Thoughts?

PokerStars No-Limit Hold'em Tourney, Big Blind is t40000 (5 handed) converter

saw flop|<font color="#C00000">saw showdown</font>

UTG (t305578)
MP (t1315100)
<font color="#C00000">Button (t813111)</font>
<font color="#C00000">Hero (t515865)</font>
<font color="#C00000">BB (t330910)</font>

Preflop: Hero is SB with K[img]/images/graemlins/heart.gif[/img], A[img]/images/graemlins/diamond.gif[/img].
<font color="#666666">2 folds</font>, <font color="#CC3333">Button raises to t811111</font>, Hero calls t493865 (All-In), BB calls t288910 (All-In).

Flop: (t1601886) 8[img]/images/graemlins/diamond.gif[/img], 6[img]/images/graemlins/club.gif[/img], 4[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(3 players, 2 all-in)</font>

Turn: (t1601886) T[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(3 players, 2 all-in)</font>

River: (t1601886) Q[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(3 players, 2 all-in)</font>

Final Pot: t1601886

(edit: mistake on the $ for 10th place)