I cannot agree more, just told it to Parallels USA on the phone.
Unfortunately, today more and more software companies force their customers to subscribe.
Though losing software use in case of subscription ending is a huge problem, it is not the only one IMHO:
- How much Pro Edition subscription will cost next year? After 50 $ limited time offer (for current customers) ending, probably 99,99 and for not being sure you'll get major upgrade.
- I'm sick of giving my credit card information to companies that may keep it "for life" and you don't even find any info in this matter. We all know what happened to bigger firms (millions of accounts stolen) than Parallels and that were supposed to be fully secured! Encrypting confidential information parts is a good (elementary) practice of course but the best practice for not asking ourselves if some bad guys - that target more and more companies for getting user accounts information - didn't succeed in having our credit card number is: NOT GIVING IT when stored on company server if not really necessary.
Being pushed to subscription drawbacks to get features we've got in previous versions and still need in PD 11 is a SHAME.
- For a cost that may double next year compared to previous regular upgrade price, the Pro Edition still does not offer license policy for 2 computers (even this stingy Adobe allows 2 installations per license).
Releasing so buggy versions of PD 10 (last build) and 11 is the second SHAME towards faithfull customers, especially those who need to work with stable VMs and didn't jump on Windows 10 like geeks on a brand new iPhone! 
But it is probably more important to look "compatible with Windows 10" even before it is realeased than being Professional and efficient with old and out-of-dated Windows 7 and 8.1! 
Last edited: Aug 24, 2015