There are other reasons I won't move over to 10, like privacy concerns
to an extent you are correct. However you have the option to turn off all those things and it's not that hard. Problem is we all read and hear about all those concerns but not much mention as to how easy it is to turn them off. Do they have back doors who knows. But really, is there any true privacy anywhere.
Thing is Dave, while the obvious snooping abilities on the surface can be easily turned off, there are 'phone home' devices built into the core of Win 10....and they can't be turned off without entirely borking yout PC. According to one article on the matter, this was Microsoft's intent all along, to be 'transparent' with its data collection methods on one hand, by placing them in an easy to find 'privacy folder, and covertly running another set of data mining methods deep beneath the surface.. so deep in fact, only a handful of experts have thus far been able to discover. them.
Nope, given this latest debacle with Apple being forced by the court to unlock a phone for the FBI, I have little to no faith in tech companies being able to deny any 'interested parties' access to whatever collected/stored data they may have.... and then there's the hackers worldwide who would see it a challenge to break into MS' data banks for 'useful' information. Yup, this latest FBI development has opened an entirel new can of worms, and with this 'core data collection, Microsoft is playing right into the hands of vested interests intent on amassing even greater power.... and remember, in this technological age, information is power.
Oh, and before anyone comments about the glare bouncing off my tinfoil hat, take a good, honest, long look at how tech companies have been in a race to collect data on huge scales. I don't know the statistics, but it's far, far more than 20 years ago. Heck, it's far, far worse than just a couple of years ago.... with Google being at the forefront of data collection and storage. Believe me, the time is coming when government, law enforcement agencies and others will have digital access to your entire life, from your favourite breakfast cereal right down to when you last took a dump amd what brand toilet paper you used. Okay, maybe that's exaggerated, but sometime soon, it will come to pass that little or nothing of our lives will be private.
1984 + The Jetsons anybody?