About the spiritual centers, I think SF already has plenty. I live in the Panhandle area and there are tons of churches that seem to have fallen into disarray and/or are underused. Everytime I pass by one (often converted from an old Victorian) I can't help wonder how much better off the neighborhood would be if they tore the building down and built some sweet new condoes or restored the original building.
Granted spiritual centers have their place in the community of course. I just get the sense that the demand in SF isn't there anymore for all structures we have. Example, the Luthern Church on Dolores Park was converted into a 17,000 square foot home.
http://601dolores.com/
http://sf.curbed.com/archives/2009/02/12/back_on_the_market_your_very_own_church_in_the_mission.php