Home Gym - Do I really need one?

I have been thinking of changing my den into a workout room. I have a treadmill, several exercise and yoga videos, weights and workout mats. I work mostly on my laptop now, so I don't really need an actual den. I thought if I got myself one of those fancy home gyms I would work out more. My husband however, he reminded me that the treadmill is a really expensive quilt holder; the exercise videos are balancing the computer monitor; the weights are in a basket in the closet and the workout mat has been taken over by one of the dogs as a bed. I think he might have a point.