Wasting Congress' Time

It's January 18th and the news is full of the Republicans attempting to "over turn or repeal" the Obama health care plan. These people are not dumb..... so why waste everyone's time? To prove a point? We all know they hated the bill and the Dem's had the majority and pushed it through. We all also KNOW that President Obama will VETO any attempt to kill the thing so why bother? They don't have a 2/3's majority to make it veto-proof so it all comes down to a GIANT WASTE OF THE GOVERNMENTS TIME.