Home Depot still has the Ridgid 12" SCMS for $299.
I have a 10" DeWalt - non-slider that I'm more or less happy with.
There have only been a couple/three times in the past that I wised I had either a larger saw or a slider.
The $400 and above ones (Glide) aren't in my plans since I really don't use a miter saw all that much.