Button: Why raise on the turn if you think you have the best hand?

[AA suited]

blinds = 25/50, 7 players left, everyone has >750 chips

mp limps in, you are the button w/j [img]/images/graemlins/heart.gif[/img] q [img]/images/graemlins/heart.gif[/img] and limp in. blinds limp in.

flop = 2 [img]/images/graemlins/spade.gif[/img] 7 [img]/images/graemlins/spade.gif[/img] j [img]/images/graemlins/club.gif[/img]

checked to MP who bets 1/2 pot. you call, blinds fold.

turn = 5 [img]/images/graemlins/diamond.gif[/img]

mp bets 1/2 pot again.

if you think your J is good, the standard play is to raise him? WHY???

if he's betting into you, why not let him bet into you on the river too? then you can min raise there to extract max chips, no?