In what way? The quality of an OS is almost purely opinion, I like 10, 7 not as much.
In ways of what you need to agree to use one.
Honestly I think this boy is far gone. He is actually going to PAY for windows 10 to spy on him and sell his information. But hey, to each their own. I mean, if all you want windows 10 for is to play games, then just use bloody 7, and dual boot into Linux for everyday complaining!