So is CW going to be paid only now? I'd be fine paying for the software, as long as it gets regular updates and all

The price I'd be willing to pay would definitely hinge on the feature set though. I was happy to pay $150 for Simplify3D for my FDM printer, as it seems to have tons of options that help you get things JUST right, which is nice for business use. At the moment I don't think CW is quite worth $150, but if it had baked-in, easy to use RPi integration capability that let me queue jobs from my PC and run it via RPi, as well as a few more support structure options, I could definitely see paying $150 for it.