Re: Why free?
As it happens, I did buy a new laptop today, largely because of the update.
Older child's three year old HP laptop has been a pain in the a*** from day one.
It already has had a serious warranty repair then another repair out of warranty, and now having problems with the sound socket. So when the update to Win 10 stalled at 55%* I just thought sod it, headed up to Tesco at Borehamwood and got her a new one to take back to uni ( she can keep the old one to use at home - or else I'll wipe it and stick Mint on.)
But if it hadn't been for the update I'd probably have had a new socket soldered in and kept it running for another year.
*There are a few reports about this happening, on the web, but none seem to have a relevant solution