Just curious how many folks have decided to sit tight with a back-level version of osx, having determined that the computer meets their needs as is and don't want to hassle with upgrade issues. This would include those who are stuck at a level due to hardware not supporting newer releases. Curious as to what release you are on as well. I'll bet there are folks still using powerpc based macs. I am thinking of taking this route and staying at el capitan. Or at least seeing how long I can hold out. I have noted each release makes itunes and iphoto worse to use, and when the new os comes, sometimes I need to buy upgrades to other software to make it work. Also, I am interested in folks opining on how many more years my cMP 2010 can go before it breaks and cannot be repaired--and what part may be expected to go first. There are people still selling (or trying to sell) powerpc mac pros--admittedly at ridiculously high prices. So we know these things can endure. Thanks.