I miss the gym rat camaraderie, and, depending on the gym, eye-candy, but nothing beats the convenience of a home gym. I can lift whenever I want to or am able to, even if I only have 15-20 minutes, no commute, no waiting around for a piece of equipment, no sweat or odor from other people, no embarrassment when you fail trying out a new exercise, as I did the other day with my suspension straps trying walking handstands, you can listen to music, or, in my case, field recordings, if you want to, and, of course, you can do it all barefoot without any hassles.