One alternative is coworking spaces. At the risk of sounding like an ad, I use one in Austin called Conjunctured (http://conjunctured.com/) and the cost is $250 a month. For that, you also get use of a conference room when needed. That's around $8 a day, and pretty competitive with coffee shops. Check out if there are any coworking spaces near you; they don't have to be expensive.

One of the nice benefits I'm enjoying that I didn't expect is meeting a lot of driven, self-motivated, young professionals. Being an old-timer, this has been really refreshing. Plus, I've actually been asked for advice; don't know how useful my advice has been, but man, it's a nice boost for the old ego.