I want my main workhorse in the studio up to date. Not only today, but also tomorrow.
And I see it as self-evident that you have to pay for development and support of such a software product. As long I see good improvements of the software, bugfixes and new content that make me happy, I have no problem to pay about 150-200 per year.
I see it as normal to pay around 500 for car service every year, so why not a yearly fee for a software workhorse like Sonar?
Let's assume that the next update contains a killing feature that makes your song a top twenty hit. Do you'll really want miss that feature because of a ridiculous annual fee of less than $200?
Cakewalk offers 3 different models of membership. And it's by you how much you want to afford.
And if you think you don't need updates and more features, you can stay on X3 as long you want.
It's your decision. You have to know what you want and it's not really relevant, what other people do and why.
_Markus