$5.5 Party 3-table FT AKo decision

3-table tourney, 9 people left top 5 get paid.
Table is generally loose and aggressive. One TAG at the table and he's not in the hand.

Hero is in a tough spot as one of the short stacks, and comes across a first REAL hand in a while.

NL Texas Hold'em Level:6 Blinds (75/150)
Table Three-Table(545349) Table #1 (Real Money)
Seat 8 is the button
Total number of players : 9
Seat 1: UTG( $6678 )
Seat 2: UTG+1( $3797 )
Seat 3: MP1( $2778 )
Seat 5: MP2( $1561 )
Seat 6: MP3 ( $4490 )
Seat 7: CO( $2942 )
Seat 8: Hero(button) ( $1146 )
Seat 9: Sb ( $4574 )
Seat 10: BB( $2034 )
Trny:18317963 Level:6
Blinds (75/150)
** Dealing down cards **
Dealt to Hero [ Ah Ks ]
<font color="#666666">UTG folds,</font> <font color="orange">UTG+1 calls [150], </font> <font color="#666666">MP1 folds</font> , <font color="red">MP2 is all-In [1561], </font> <font color="#666666">MP3 folds</font> , <font color="orange">CO calls[1561] </font> .

Hero? . . .
Throw it in and hope to triple up or wait for a better opportunity?

Hero's actual decision had good RESULTS, but still not sure if it was the RIGHT decision.