I bought Reaper when Gibson dropped Sonar (Platinum in my case). Didn't use it much and got very irritated with it when I did (but more in a bit). I was also relieved when Bandlab picked up Cakewalk, but also concerned. "How long will it be free?", etc. I was very surprised and grateful for what followed.
I did not give up on Reaper however and though I am now intermediate at best I've come to appreciate it. For various reasons I am not able to support the kind of budget that Studio One etc require.
Anyway I think it would be very decent of Bandlab to offer a steep discount on the new Sonar (which initially at least will be using the substantially same code base as the old Sonar) to people like me. If they don't do this I won't touch it. BTW I know all too well they have no legal obligation.
I will keep CBB and will install the final update. I will finish some things off. Then I may uninstall it and, sadly, say goodbye.