Sweating Commerce 20/40: AAAA No Good? Or are they? (LC-ish)

[BoxTree]

Sweating Commerce 20/40 NL, 7-handed

CO (tourist) posts $40.

Folds to CO. CO checks. Button (regular) makes it $240 to go. Blinds fold. CO calls.

Flop (2 players, $540): A[img]/images/graemlins/club.gif[/img]A[img]/images/graemlins/heart.gif[/img]T[img]/images/graemlins/club.gif[/img]

CO checks, Button checks.

Turn (2 players, $540): K[img]/images/graemlins/club.gif[/img]

CO checks, Button bets $200, CO calls.

River (2 players, $940): Q[img]/images/graemlins/club.gif[/img]

CO bets all-in for just shy of $8,000.

Button looks at his cards, looks at the board, looks at his cards, looks at CO, looks at the board, laughs, sighs, and says, "I'll get you later," as he folds AA face up.

BB (another regular) says, "You should have called."

Button says, "Nah, for 8 grand, he can have it."

BB says, "Okay, then I should have called."

Button retorts, "Fine. Maybe you would have won."

BB concludes, "Maybe? I had the Jack."

So, the only content here is...do you ever call the tourist's all-in (assuming you have him covered)? Do you ever fold?