NL50 - Trip Aces facing pushback

[Rambino]

PokerStars No-Limit Hold'em, $0.50 BB (8 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

UTG ($64.50)
UTG+1 ($49)
MP1 ($88.85)
MP2 ($10.45)
CO ($44.45)
Button ($28.85)
Hero ($39.90)
BB ($50)

Preflop: Hero is SB with A[img]/images/graemlins/club.gif[/img], Q[img]/images/graemlins/spade.gif[/img].
UTG calls $0.50, <font color="#666666">3 folds</font>, CO calls $0.50, <font color="#666666">1 fold</font>, <font color="#CC3333">Hero raises to $2.5</font>, <font color="#666666">1 fold</font>, UTG calls $2, CO folds.

Flop: ($6) A[img]/images/graemlins/spade.gif[/img], 7[img]/images/graemlins/spade.gif[/img], A[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#CC3333">UTG bets $3</font>, Hero calls $3.

Turn: ($12) 3[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#CC3333">UTG bets $7</font>, <font color="#CC3333">Hero raises to $18.5</font>, <font color="#CC3333">UTG raises to $59</font>, Hero calls $15.90 (All-In).

River: ($80.80) 6[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players, 1 all-in)</font>

Final Pot: $80.80

I figure I beat everything except AK, A7, 77 (assuming he didn't get lucky with A3 on turn). AK probably would have raised pf. Villain has been fairly selective with his pf hands, and I don't think this player would have called my pf raise w/A7 or A3. That leaves 77 that beats me. I figure his play is also consistent with KK-88, or AJs-ATs, and he just doesn't think I have an Ace.

That was my thinking. Am I just being silly and spewing here, or is this a good line given my reads?