Someone here mentioned having 5 licenses and that they will upgrade one of them.
I had a 4-license "pack", which is not the same as 4 licenses, and MR told me it was all-or-none to do the upgrade. When I saw the upgrade cost for the pack, I decided I only wanted to pay for one upgrade, not four.
So, if they are now going to ONLY subscription, and my current license will not upgrade to "X" for free, then I will be keeping the 8.1 license and looking into alternatives.
I've already experimented with Hasleo and determine that it is nearly as fast as MR 8.1 Home and generates backup that are nearly the same size. I don't use any of the advanced MR options like Image Guardian, nor do I do incrementals. So, Hasleo has all the features I need, including making rescue media boot option and rescue USB stick.
So, if I switch away from MR, it will probably be toward Hasleo.
UPDATE: I read the update info on the MR site -- claiming that MR X is twice as fast as MR 8.1. If 8.1` took a LONG time, then it might be worth the upgrade cost to cut that time in half, but I use a NVMe Gen 4 stick and backup time is only 1.5 minutes. Spending all that money to cut that to 45 seconds -- is not worth it, in my view.