I specifically decided against a slide when buying my current rig. My last TT had a huge slide which was a nice addition when parked. However, I bought the "c" specifically for road trips, and since you can't use the slide while driving, it just takes up room. We had the TT parked next to the house and used it for an extra bedroom once in a while, but the slide needed to be extended to expose the heater ducts in the floor. It was also difficult to walk between the living area and the bedroom while the slide was in. One winter I had left the slide out so I could use the unit, it snowed enough that I think it tweeked the alignment of the slide as it wouldn't move in and out easily after that. Unless you have a slide cover, retracting the slide in when it's wet or dirty gets all that stuff inside the unit. Good luck finding a newer unit without a slide these days, when shopping last summer, I found it difficult to find a newer unit without one. No slide makes for a stronger box.