icm call against sb

[saddu]

PokerStars Tournament, Big Blind is t200 with t25 antes (6 handed) Converter on pregopoker.com

UTG (t3535)
UTG+1 (t1230)
CO (t2595)
Button (t1830)
SB (t1730)
Hero (t2580)

Preflop: Hero is in BB with 9[img]/images/graemlins/diamond.gif[/img] A[img]/images/graemlins/spade.gif[/img]
<font color="gray">UTG folds</font>, <font color="gray">UTG+1 folds</font>, <font color="gray">CO folds</font>, <font color="gray">Button folds</font>, <font color="red">SB raises to t1705 (All-in)</font>, Hero calls t1505

i know he can push with 50+ and my call is +ev, but it couldn't be better to wait since i know i can play better then others at the table later in the tourny? (sorry for my english)