It would be nice if there were developments around the country that offered affordable cottages/condos that could be purchased by the glbt elderly that are located in beautiful areas: that also have easily accessible additional home medical services, as needed. Maybe with a co-operative lodge/eating area as well. So that people could maintain as much independence as they can handle but add services as needed.
I addressed the dearth of affordable gay retirement communities here three years ago: http://www.realjock.com/gayforums/794295
I posted a link to an article about this existing gay retirement community several months ago; the developer, a lesbian and former for-profit Manhattan developer is working on filling this niche: http://www.nbcnews.com/id/13227636/#.UTP2sI5Z_dk
However, aside from possible trailer park communities in Florida, what you're asking for doesn't exist for even straight people - a room
AFL for one person will run at least $3,500 a month.
Save your money, people.