There's some heavy reverse line movement going on in this game, likely some lineup changes, possible Kobe fallout still going on, etc. that we public bettors aren't cool enough to have information on just yet. The public is heavy on the Spurs, but there were bigger earlier bets going in on the Bulls and the line has been dropping since lunchtime. This just has all the hallmarks of your typical "trap-game" set up by Vegas to entice more lop-sided action onto the Spurs. I don't know if theres still value on the spread for Chicago, but taking them for -120 at home against a fairly equal opponent still seems like a decent bet that holds some value.
It's never smart to bet against the house and Vegas wants to gamble with the Bulls tonight. I'll tag along.