Riverbluff +EV?

[xenthebrain]

Villain is 84/0 and WSD 40

Party Poker 0.5/1 Hold'em (10 handed) converter

Preflop: Hero is MP1 with 7[img]/images/graemlins/diamond.gif[/img], 8[img]/images/graemlins/diamond.gif[/img].
<font color="#666666">3 folds</font>, Hero calls, <font color="#666666">1 fold</font>, MP3 calls, <font color="#666666">1 fold</font>, <font color="#CC3333">Button raises</font>, <font color="#666666">2 folds</font>, Hero calls, MP3 calls.

Flop: (7.50 SB) 9[img]/images/graemlins/spade.gif[/img], 6[img]/images/graemlins/diamond.gif[/img], 3[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(3 players)</font>
<font color="#CC3333">Hero bets</font>, MP3 calls, Button calls.

Turn: (5.25 BB) A[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(3 players)</font>
<font color="#CC3333">Hero bets</font>, MP3 calls, Button folds.

River: (7.25 BB) 9[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets...</font>

But after missing, do you think a riverbluff is +EV?