As it stands, CWP (whatever that stands for) is far too volatile to be considered a mainstream control panel. Undocumented, almost daily breaks/fixes puts paid to that. Pun intended.
Pricing in the $4/$5 per month puts it at the level of, for example DirectAdmin and even though I much prefer the CWP GUI, at that price point CWP Pro would fail entirely, IMHO. DirectAdmin is increasingly being offerred for free with VPS packages.
I currently run only one client site with CWP Pro, which is manageable, though I wouldn't trust any more than that! I have another CWP Pro instance, for my own application development. This is in addition to a couple of free CWP instances. I also run WHM (x3), DA (x2), webmin (x4) and other control panels - some purely for psuedo-personal purposes eg. tertiary backups.
CWP Pro *should* open the gateway to Support Tickets, with the free version only forum based support. This doesn't mean Support caters for people who know little about how to run a server. It's to address issues with the panel itself.
Whilst I voted No in the poll above, there is scope to increase the annual fee a little, without putting too many people off, IMO. The developers of CWP do not do themselves any favours however, as the lack of forum participation and response to critique has a large bearing on the trust from potential Pro purchases, I'm sure.
Double the annual fee, and I'd take my money elsewhere - the risk factor of CWP is high enough as things stand. :-/
Note: I send the occasional voluntary donations to Linux Mint, wikipedia and other helpful sites. Once a blue moon folks have donated to me for my information/files too. Though not as active as a few years ago, I contributed much coding and 'fresh' ideas to a certain open source oscommerce derivative.