Good article on this here.

My biggest limitation in San Francisco with this, is getting a decent room, in a decent location, for cheap-near free, in an area close to BART, but also with adequate and inexpensive parking.

When a group of 7 to 10 people show up for Wilber/integral, you can do a lot of interesting things, both from a practice and study perspective - but again, you want a private room to do so, without paying $40 for two hours. 

The one crap thing about San Francisco - rents!!  (And the fact that I have not been industrious in looking for a place...)