Thanks for the clarification. That sounds really bad.
Say, I happen to have some extra money to buy a software today. I install, register and use it also in the future when I'm flat broke. I can't afford to upgrade, but I can go on as usual.
The subsciption method can be a really nasty trap, if you have several such softwares on your machine.
Especially when we're talking about students, the unemployed and the likes who can be really, really short of money every now and then.
I upgraded to 8.5 a few years ago and I have hardly spent a dime on software since. If subscription was the only way to get SONAR today, I'd move to Reaper immediately. I can't imagine they'd lower the real price so dramatically, that I could be talked into it.
Also, monthly (or yearly) subscription fees with all that credit card data exchange would increase the risk of other sort of unwanted incidents.