Depending on where in the Bay Area you live, I would highly recommend Rich Kamp at Sonoma Raceway (the old Sears Point) for an excellent resource for information, repairs and maintenance (he restores Lotuses, builds Caterham kits, etc.). I used a Seven as a daily driver for 6 years (when I was young and dumb!), so it can be done, but the concerns already expressed about weather protection and lack of an enclosed garage are certainly things to think about. Owning and driving a Seven is not a rational decision, so looking for rational reasons to own one is futile!! Often, after one's first test-drive, rationality goes by the wayside and you just look for a chance to own one...