Did I let him off the hook too easy?

[DrJ]

Been noticing lately that I've been having issues extracting max value out of hands and am trying to plug it. Wondering if this is yet another case of said issue coming up.

PokerStars Tournament - $10/180, Big Blind is t200 (9 handed) Converter on pregopoker.com

Villain is a complete calling station/maniac. I got to the table about 20 hands ago - in which time he has gone from 23K to his current 9K by doubling up 3 AA's with complete garbage. In one case he called a huge flop bet with 9Td with a single diamond on the flop and no 9 or T. In another case, he played 4's all the way down to the river against the A's.

Hero (t5195)
UTG+1 (t2139)
MP1 (t5475)
MP2 (t6150)
MP3 (t14670)
Villain (t9085)
Button (t1450)
SB (t4690)
BB (t11173)

Preflop: Hero is in UTG with J[img]/images/graemlins/heart.gif[/img] J[img]/images/graemlins/club.gif[/img]
<font color="red">Hero raises to t800</font>, <font color="gray">UTG+1 folds</font>, <font color="gray">MP1 folds</font>, <font color="gray">MP2 folds</font>, <font color="gray">MP3 folds</font>, Villain calls t800, <font color="gray">Button folds</font>, <font color="gray">SB folds</font>, BB calls t600

Flop: (t2500) J[img]/images/graemlins/diamond.gif[/img] 8[img]/images/graemlins/heart.gif[/img] A[img]/images/graemlins/heart.gif[/img] (3 players)
BB checks, <font color="red">Hero bets t1200</font>, Villain calls t1200, <font color="gray">BB folds</font>

Turn: (t4900) 2[img]/images/graemlins/club.gif[/img] (2 players)
<font color="red">Hero bets t3195 (All-in)</font>, <font color="gray">Villain folds</font>

Should I be betting the flop harder to make it an easier call for him on turn? Betting the turn softer to keep him around?