fisherking wrote:
"if we all lived by that we'd all be on os x 10.3 or something. we have a choice, to stay current or fall behind. maybe there's no rush to upgrade, but it's worth it at some point. so, down the line, you're not 3 os's back, and sites won't open, or apps won't work, etc...."
What works for you may not work for me.
My 2006 white Intel iMac still does ok using 10.7 "Lion". There it stays (actually, can't go any "higher").
My 2010 MacBook Pro still has 10.6.8 running on it. Runs "good enough", so there it stays.
My 2015 MBPro came with El Capitan. It runs fine, and so long as it continues to do so, I think I'll just leave it there. It "does what I need".
My 2012 Mini came with Mountain Lion (10.8), and I left it there for 4 years. Just recently upgraded it to [again] El Capitan, and may leave it there for the rest of its useful lifespan.
To be clear, I use NONE of Apple's cloud apps, never once have I logged into iCloud (and no intention of ever doing so). I don't own any iOS devices, either.
Again, one's needs may determine "where one has to be" regarding the OS.
I'm fine with "where I am" right now.