I've got two of the old design (one with a chip and one without) and have no plans to get another on my next trip. I just don't drink enough soda to make it worth while. I had planned on bringing back one of my old ones for water. I do use one of them at work, but the other just kinda hangs out in the cabinet. It'd have to be one heck of a design to make me shell out another $15 bucks for a cup. However I will be stalking for pictures of a new design because you never know. It could be worth it.