I've crossgraded a few DAWs I own (except CbB and Reaper) including Studio One Pro, Samplitude and Mixcraft, I got Cubase 9 on a hefty sale and waited for 10 to be released before registering it. The I stupidly bought the 10.5 upgrade without realizing the on sale trick to get 11 cheap. Live and learn.
I'm not sure I want drop $420 on another DAW even though I do see the differences between Nuendo and Cubase. I'm just not sure I'll need them. I'm not sure I'm all that proficient on Cubase as I am on Studio One, CbB and Mixbus 32C (here not as a DAW, but as a mixing console ? ).
I have a perpetual license for Pro Tools (2019). @Dzilizzi I'm unclear about what you said about a perpetual license expiring. How is perpetual not perpetual? Unless you just meant support?
I also own Digital Performer 10 . Not sure I'm digging that DAW. Reason 11. Same. Acid Pro 9. Same. Not likely to upgrade those unless it's in the $50 range.
On my Mac I also have Logic and (DUH!) Garage Band as well as all the cross platform DAWs I own (Studio One, DP 10, Cubase 10.5, Mixbus 32C, Reason 11, Reaper & Pro Tools).