Is this a value bet?

[TheWorstPlayer]

Villain is loose/passive/weird. He just plays weird. I can't quite put my finger on it. He will pull tricky moves but in weird places. Usually he is just loose calling station but then sometimes he'll do something like bet 500 into a 12 pot. He's just weird. His numbers are 45/5 though. And not much postflop aggression either. What do you think? Is this a river value bet? I think it's close and I'm not sure.

Party Poker No-Limit Hold'em, $ Hero (6 max, 4 handed) FTR converter on zerodivide.cx

Hero ($612)
UTG ($389)
Button ($326.04)
SB ($809.90)

Preflop: Hero is BB with Q[img]/images/graemlins/club.gif[/img], K[img]/images/graemlins/diamond.gif[/img]. SB posts a blind of $2.
<font color="#666666">1 fold</font>, <font color="#CC3333">Button raises to $8</font>, SB (poster) calls $6, Hero calls $4.

Flop: ($24) T[img]/images/graemlins/club.gif[/img], 8[img]/images/graemlins/spade.gif[/img], 9[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(3 players)</font>
SB checks, <font color="#CC3333">Hero bets $8</font>, Button folds, SB calls $8.

Turn: ($40) K[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
SB checks, <font color="#CC3333">Hero bets $30</font>, SB calls $30.

River: ($100) 2[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
SB checks, Hero...?

(Please ignore the weird flop bet.)