Shay,

I agree, this IMHO is the number one reason to upgrade. ColumnStore indexes, on the other hand, are used primarily for data warehousing large set query performance and while it does enhance perfromance in that area in some cases, in other cases it actually degrades performance from what I am hearing and reading.. But, with that being said, that it is still not a compelling enough reason to upgrade to SQL Server 2012 , particularly with so many shops still not even using data warehousing yet.:-D