People may be able to pay the cost of a simple membership but not a trainer, also classes are at certain times, they may not have the space in their own home to workout to the video. Why couldn’t they bring the video to the gym, ultimately renting “space”. Could have multiple TV set ups, wireless headsets so different videos can play at the same time.
How big is your space? How many TV’s can you install and how many people can you accommodate at any given moment? Liability could be an issue, but I think space could also limit you as to how many people can use that equipment. They will have to share the space with other customers as well who don’t want to do any of those workouts.