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I want to creat an exercise room and do not want to place anything on the floor to get in the way. I think using a projection set up is brilliant. I came up with the idea and my spouse says he can cheaply implement this with the VCR and DVD player projected onto a screen. I don't care whether it accesses a tv or not. But reading about this great reason to get all these great features tells me that we should spend more than $100 just for the projector alone. Is it difficult to go back and upgrade the projector to a better one; and are prices likely to drop as technology progresses? I am tired of waiting to exercise while he goes to the gym. Maybe someone wants to get rid of one or has some other suggestions! Thanks a million!