I know that there have been many variations on this theme, but I would be curious to know (should such data be available, which I'm sure it isn't) how many satisfied users of SL resisted OS Lion, and may very well do the same with Mountain Lion, and their reasons for doing so. Speaking for myself, while I understand (somewhat) what was introduced with Lion, and with Mountain Lion, I remain curiously untempted. I'm not an expert, but my impression is that the last two initiations of OS X is an attempt to move away from OS X toward iOS, with the idea in mind to eventually merge the two, which, to me, suggests that there may come a day when will be in the iDevices domain exclusively, i.e., good-bye computers (especially desktops) completely (as we know them). I could well be wrong, and I hope I am, but I can't help thinking this. Disclaimer: my computing needs are but modest. Word processing (Pages, Ulysses), photo editing (iPhoto), a little video mucking about (iMovie), email, web surfing. Honestly that's about it, for the most part. And of course, many have needs more extensive/demanding than mine. Snow Leopard was and is my first experience with OS X (mid-2010 iMac, my first Mac), and I have been nothing but impressed. What I felt was being offered in Lion did not tempt me, and as I become more familiar with what Mountain Lion offers, I feel much the same. Airplay mirroring I would probably never use (even if I could, but I realize that my almost 2 year-old iMac is already obsolete in this regard), I don't do Twitter or FaceBook, I could care less about Notifications, etc. The only thing I worry about is that, eventually, my core apps will at some point no longer be supported for Snow Leopard, and I'll have to upgrade whether I wish to or not. Of course, I'll probably upgrade computers in the next year or two, so the whole thing will be moot. In which case I'm sorry to have wasted your time. Am I just a neo-Luddite because I cling to SL? Sorry to be so long-winded.