However, since they may have spent money within, say six months of payments, that money would be lost.
I think you are wrong here. The way I read the FAQ if they pay for 6 months they are credited for 6 months of payments. They could resume their payments and they don't start over at ground zero, they just need 6 more months of payments, and the product is theirs. Can anyone from Cakewalk confirm my interpretation of this?
If in the case they make payments for 6 months and never chose to renew, the payments are not lost, they counted for the time of operational use that they used the product and this is right in line with what everyone else with monthly membership offers.
The difference between what CW is doing and someone like Adobe, is with Adobe, you have to pay forever, for use of the product. With CW, after 12 payments you can quit, and the product is yours.
The more overall point here is that CW has the right to sell the product for what they deem a marketable price. You as the consumer have the right to chose if that is reasonable or not. If you look at this objectively, CW is very fair here, if you just take the up-font price, this is really not that different from the X3 upgrade, they are just offering another option, which I think is a great move.
As you say, they have their projects. However, the content in said project is already owned by the performer (author, etc.). Whether recorded or not, that remains true. So, the project itself is of little to no value without the content. Therefore, in context, I am referring to a product, not a production.
This is arguing semantics. If they exported the project to wav, then they have everything they need. In a project format they are calling access to the plugins and settings within Sonar, so yes they have to own the program and any of the plugins they are using.
Again, it would be nice to know where you are going with this, because we are running around in circles. Bottom line CW could have not offered membership in which case everyone would have to pay up front for access. They are offering an option which actually costs more than a straight upgrade, but may be easier on people's budget.