I'm running SL 10.6.8 on a May 2k11 iMac (with the Thunderbolt drive and the i7 Intel QC.) I know I can upgrade to Lion, but I wonder if I should? Most of what I do is grading academic papers on Blackboard 9.1, word processing, etc. No programming, no intensive photo editing, no video, etc. Given that none of the new features are of interest or apply to what I'm doing, I wonder if I should upgrade--or rather wait six months to a year when future applications I need require Lion as a minimum. Thoughts or insight welcome.