Acordint to Ira Stoll, you may be exactly right:
Though the decision will widely be portrayed as a victory for President Obama his signature legislative accomplishment was ratified as constitutional by a Supreme Court majority that included George W. Bush-appointed chief justice John Roberts it isnt necessarily clear that it will be a victory. By calling the mandate a tax, the court made an official ruling that President Obama had violated his 2008 campaign promise not to raise taxes on anyone earning less than $250,000 a year. And the ruling also keeps ObamaCare alive as a political issue. A ruling that struck down the law might have energized Obama supporters. This ruling may make the laws opponents even more determined to elect a Republican president and Congress so that they can repeal the law or, failing that, defund it.
http://www.futureofcapitalism.com/2012/06/early-thoughts-on-the-obamacare-ruling-2
Look for a 20% (minimum) loss (2,500 or more points) over the next 30 days!