I looked back at my original comment.
I did end up joining a gym, but not the personal training/spin place I had mentioned. I joined the cheapest gym in the area, mostly for the 5:30 AM core training/circuit training class 2X a week. Otherwise, it's not that great, not a lot of classes at times convenient for me, and the people seem cliquey, although after 5 months, they talk to me now! I used to belong to a pricey, full service health club/swim/tennis place with tons of classes. It's a case of you get what you pay for. But, I don't need something like that. I need to find something else for next fall.