One thing about travelling by yourself, you don't need the extra space to get out of somebody's way. All slides do is open up floor space. You could have a square dance inside with some of them.
Coming from the cruising boating world, where there are no slides, everything was compact & easy to reach, much like a 28-30' class C with no slides.
Slides are simple mostly reliable things. If you find a unit with slides that steals your heart, get it. Best if you can find a low mileage, well cared for used than paying top dollar for a new & have to work all the bugs out of it.
