Not the nut straight, 3-bet when check-raised?

A few days ago I posted a HH where I did not 3-bet a full house on the river.
Now I have done it again.

Pacific 1/2 Hold'em (9 handed)

Preflop: Hero is Button with 9[img]/images/graemlins/heart.gif[/img], Q[img]/images/graemlins/heart.gif[/img].
UTG bet, UTG+2 calls, 1 folds, MP calls, 2 folds, Hero calls, 1 folds, BB checks.

Flop: (5 SB) 4[img]/images/graemlins/club.gif[/img], J[img]/images/graemlins/heart.gif[/img], K[img]/images/graemlins/diamond.gif[/img] (5 players)
All checks.

Turn: (2.5 BB) T[img]/images/graemlins/heart.gif[/img] (5 players)
BB bets, UTG calls, UTG+2 calls, MP folds, Hero rasies, BB calls, UTG calls, UTG+2 calls.

River: (10.5 BB) 8[img]/images/graemlins/club.gif[/img] (4 players)
BB checks, UTG checks, UTG+2 checks, Hero bets, BB calls, UTG folds, UTG+2 raises, Hero calls, BB calls.

[Vote4Pedro]

please reraise next time, I think two purs is much more likely than AQ

[deception5]

The preflop cold call is a bit marginal.

Given that he didn't raise the turn when he could easily have trapped the entire field for an extra bet, I put him on making the river straight with 97. There's also a chance you split with another Q9. Only an oddly played AQ beats you. I also think BB will call another 2 so I raise.

[Absolution]

Reraise. Why would you slow down there?

[davelin]

[ QUOTE ]
The preflop cold call is a bit marginal.

[/ QUOTE ]

It's a little confusing but I believe Hero just limped here.

[Marquis]

The only hand you're behind is a standard preflop raising hand, and since that did not happen, you shouldn't fear it. The turn action also adds to its unlikelihood.

[deception5]

[ QUOTE ]
It's a little confusing but I believe Hero just limped here.

[/ QUOTE ]

Ahh, I think you're right, I assumed that the "bet" was a raise. In that case the preflop call is fine.

[Absolution]

Some don't raise in EP with AQo. The turn action is what ruled it out in my opinion.

[eviljeff]

I'm sure you've gotten an earful from other posters already, but you have to 3bet here. it's not even a close decision. you very likely have the best hand and it's a sin to not push your edge. you're often being c/r by 2 pair or a set. there are many more combinations of those than there are AQ.

[baronzeus]

This is a must 3bet. 90% of the time this is a set or 2 pair, or perhaps a lower straight.

One of the biggest problems in some of these micro limits is not extracting enough value. You have the second nuts. When you get to higher limits, opponents play better and make less mistakes, and losing just 1 big bet here ( although BB may have folded for 2 cold, who knows ) or maybe 2 if UTG+2 caps can be the difference between having a losing session and a winning session.