Re: Old hardware?
I'm running an old chuck out Core 2 HP (3GHz 2GB)
I installed windows 7 with a factory disk and the performance was poor. After the upgrade to Windows 10 the performance was far better, good enough to be my main machine. After the anniversary upgrade, I wasn't happy with the performance and did a re-install on a new HD. I also installed Linux Mint (Sarah, Mate, 64). I have found Mint somewhat smoother and a nicer OS. I hardly ever boot to 10 any more.
I have compared the previous version of Mint with (original) Windows 10 on the same laptop and found little difference in usability. Windows 10 being marginally better, (but not worth paying for, it's not eligible for a free upgrade.) However the latest Mint is noticeably slicker, while 10 has gone backwards.
I can see no reason for anyone who doesn't need to run Windows specific software to buy a new windows computer. Especially since a typical £150 Windows 10 laptop is nowhere near the spec of a decent spec XP machine.