The problems that many of us are talking about are not the issues related to the physical act of upgrading from one version of OSX to another. THAT has been in my experience miraculously painless. Apple has done a great job with their OS update process/installer.Just out of curiosity, what are people reasons for not upgrading their OS to the latest version when its a free update? Problems when upgrading OS are rare and even more rarely unfixable.
The problems that hold some of us back from installing are bugs in the operating system itself. Or changes in how OSX handles the hardware that are not as optimal as the previous version.
For example: Snow Leopard may have had a bumpy start, but the minor point upgrades to it made it more reliable and less prone to bugs. This relatively new annual cycle of OSX updates have created a situation where the bugs are never addressed to a level of stability that OSX once had. Just as they're closing in on that point, they release a new version of OSX that introduces new features and with it a new set of bugs... and the cycle starts all over again.
So here we are with Yosemite, that for some/many isn't at a level of stability and quality that is acceptable but will be "forced" to install it because of a key piece of software that requires it. (whether it is a legitimate requirement or lazy programming is yet to be determined)
Some of us will hold out until we absolutely need to have that piece of software that requires Yosemite. By then, OSX "Sacramento" (10.11) will be launched which starts the cycle all over again.
IMO, there needs to be longer term life cycle in OSX. Annual updates to a desktop OS are not good. If it continues, I suspect that I won't be alone in taking a serious look at alternatives.
I'm sure that there are a few people like that, but if you've spent any amount of time on this forum, you'd know that it isn't the prevailing thought of those who won't upgrade.Is it just a case of being stubborn against change and being stuck in your ways or are there other reasons people don't want to get the new OS and new features etc for free?