A lot of collaborations I am doing lately are all Live 9 users (exception to one who has Logic), I tried the demo ages ago but yes never got on with it as too much to learn, but as said lately I have been in the studio working with guys on their Live 9 and really warming to it, I know Sonar so well for it's faults and great stuff and have never considered wanting to change.
One main gripe for me is it sometimes just seems closed to 3rd party integration like at present I run a lot of NI hardware gear and the way NKS can run along side Ableton is superb, all the controls, automation and transport controls fit into it perfectly, once again something that Sonar gets left behind with (is this a lack of interest from Cakewalk or Ableton, I don't know?).
Had a great time with Sonar and not slating it, I still have huge soft spot for it, but EVERYONE I am working with is using Ableton, I need to make the transition and fit in with them and as mentioned starting to like some nice things with it.
So as expected Cakewalks response was just to mention the EULA contract, however I feel I should have every right or be able to transfer my licenses to another user rather than just let it vanish into thin air at great expense.