I keep track of how often developers charge for upgrades. As for Bitwig despite what it does it's not for me. I'm that way with Cubase except when the have that .5 upgrade sale I still buy it for $40 and hold out for the new version. What is interesting about Live even though it;s v11 they are still updating 10.
Every DAW does meaningful upgrade except for Magix Acid Pro. Look at what is happening with Bandlab and it's free. Fl Studio is another one. Maybe when Bitwig become more financially secure they will change.