IMO, depends upon with what the monstrosity is replaced. Our system that worked has been destroyed.
Of course Obama could veto repeal, but would he? If it doomed Hillary, he might want to.
In any case, GOP control of both Houses of Congress now looks likely in 2015. Of the six Senate seat pickup required, three are almost shoo-ins: MT, SD & WV. Three more are almost as sure to switch: AK, AR & LA. With retaining all GOP incumbent seats, those make 51, but at least four other Dumpocrap seats are also highly vulnerable: CO, IA, MI & NC.