Be careful talking about SB like that. You may get struck by lightning. Anything less than absolute praise may be considered blasphemous. Sandy IS the best damn CPU, always and forever.
When I replace mine with something else, only then will that new one become the best CPU ever. That's how this works.
Oh! An SB-E owner! You're predicament, which neither of us realize as such, is deeper than mine.
I've been building PCs -- wholly and profoundly since about 1995, but more or less with Klooges and mods since 1984.
Just slapping together parts, installing OS and drivers and making it run was the limit of my effort before 2004. After that, there were two obsessive priorities:
1) Build a phenomenally great PC with a modest selection of parts without spending more toward the bottom-line of a Maximum PC "Machine of the Year."
2) Build a phenomenally great PC with a good overclock that is rock-stable.
I keep wondering if the OC OC-Disorder will be left standing alone with no more challenges or justification, and some here seem inclined to that thought also. Why overclock, if the processor performs beyond the need for speed?
Only because "we can." And I suppose I'm going to make the outlay for essential Skylake parts just to satisfy my curiosity -- which means that one of these systems will either be redeployed, bequeathed or sold.
But not before I'm satisfied that a Skylake or alternative will be, paraphrasing you, the best system ever.