I don't really have experience in server hosting, but what do you think about a "subsidized" openacshost.org hosting site.
The idea is getting all interested people together and work out a strategy for openacshost.org. Intereseted people would most probably be companies that make cash with openacs and see a common marketing tool in openacshost.org.
The steps could be as following:
1. How can we optimize a server for MANY concurrent and independent openacshost.org users?
2. How high are the overall costs?
3. For what price would we like to offer that service? Adam mentioned 30$/Month. Is it possible to go that low?
4. If the service would cost 30$/Month, how much would every company have to contribute to openacshost.org?