I have to say I don't know all of the details of all of the new features as of yet. However, for the common, basic SQL Server install that doesn't need to scale I really don't see any gotta have features in 2012. The one big difference is the cost will go up based on cores. We have fast tracked three systems to upgrade to SQL2008R2 and are in progress right now simply because of the price increase coming for SQL2012.

Maybe I am wrong though.