Is it just the nostalgia, or do the workouts hold up? I'd be curious if the simplicity is actually a benefit. Rewinding tapes sounds like extra cardio.
Actually, you hit on something with the simplicity thing. It's not just nostalgia. These old workouts are still solid because they get straight to the point with no distractions. That focus helps you learn form and stick with it. Rewinding the tape is a minor hassle, but it makes the whole thing feel more intentional. The routines were designed by pros, so they still work.