Crackdown is not about graphics! Once you play it you'll understand! Yes, it is an "ugly" game, but clearly MS wanted to stay loyal to the art style and design. Any crackdown fan will appreciate that.
As far as destruction goes, if MS would have shown off the multiplayer, people would be complaining about why they haven't shown any of the single player yet. Considering they already did show off some of the multiplayer before this is a better idea.
MS will show off plenty of the multiplayer very soon in the next few months.







