Here's a godo question - is anyone doing the high level 60 instances like MC and Naxx anymore?

I remember fondly the first time my guild managed to take out Ragnaros in Molten Core. It had taken a lot of planning to make a serious attempt at it, and when everything finally came together just right it was a huge thrill. Or the first time we took out Nefarian in Blackwing Lair or Princess Huhurahn in Ahn'Qiraj or... any of a dozen other boss first kills. It may have taken countless frustrating wipes to learn the perfect strategy, but when things finally come together, it's a great feeling.