Hand Test --- What Would You Do Here?

[KramerTM]

Middle of a 20+2 NLH MTT. 500 players bought in. 60 get paid. 125 are left.

Your stack is at 2,000 chips, which is slightly above average, but in the top 3 or 4 at the table. You get dealt 88 in the BB. It gets folded around the the button who has been playing fairly tight and likes to see flops, even with semi-premium hands (i.e. a few hands ago he limped with AKs, and waited til he flopped an A to play it strongly). The button has you covered by a little, having 2,500 in chips. The blinds are at 50/100. He raises to 450.

WHAT'S YOUR PLAY (and reasoning)???