Having my old work laptop die on me (motherboard, not worth replacing) and ordering a P50 with Pro if adds start appearing on my startmenu ect. I think i'm going to take my downgrade rights to 7. Of course 4k with 7 on a 15 inch screen is a whole other can of worms entirely. If they do take out the registry edits I fear in the direction MS is headed.
You only get downgrade rights if that manufacturer offers it on that make and model. It's not an automatic thing just because you order Pro. Just in case you didn't know.
EULA all 10 Pro versions (either OEM or retail) have downgrade rights.
7.***** Downgrade Rights. If you acquired a device from a manufacturer or installer with a Professional version of Windows preinstalled on it, you may use either a Windows 8.1 Pro or Windows 7 Professional version, but only for so long as Microsoft provides support for that earlier version as set forth in (aka.ms/windowslifecycle).
When you'd want a machine for a specific purpose such as gaming perhaps ?When would a person acquire a device from an installer?
No idea what "installer" means in legal mumbo jumbo though.