The subject heading says most of it. The Dust Collector hoses, both large and small, rely on both ends for a friction fit. They rarely pull off the vacuum itself, but they often disconnect in mid-operation from the Rotex or the TS55, spewing dust all over the place. If the cords unplugged that easily, everyone would think it was a defect. It would be a little tricky, as both the hose ends and the receptor on the tool would presumably have to be redesigned, and they'd need to make upgrade kits for all of their tools out there (quite a market!), but I would buy immediately (well, after I saw a review or two that the new system works).