Thank you Sharp and Daz for all your efforts
Regarding the future: I would be ready to donate or pay a membership-fee, I would accept ads if they dont get in my way and are gear-related (no pop-up-ads) ... but I'd go for Korg + ad-free + free access. IMHO that ensures the biggest user-base and that's what keeps a forum alive.
I would try to agree with Korg on terms for running this forum on their server, because they will have to ensure certain standards here, because they are a company and have (to have) policies. These standards won't differ from what happened here befor (remember: our mods close threads, erase threads and ban users if necessary). These standards should be made public so that everybody knows how Korg could interfere and how they wouldn't. This increases credibility.
Korg knows the basics of marketing. It would be stupid to interfere with criticism on Korg products in a forum. A large part of all forums deal with problems with products - no matter if they are due to malfunction or ignorance of the user. So all forums in a way "criticise". And helping users to overcome these problems if possible is a great marketing tool. A lively community is a great marketing tool in itself. Censoring criticism would kill it all.
Another reason I'd go for Korg was mentioned already. We might get more Korg people here. This again is good for the community - and in the longrun for Korg as well. Nothing is healthier for a company than listening to its customers. Many companies spend lots of money on surveys etc. - a forum contributes parts of this for free. Believe me: I run a company and I would LOVE to have an INDEPENDENT forum for my products run by my customers and getting all the feedback - good and bad - including reducing service and support costs and all that for financing a web-server.