I don't like using up wall space and I like to walk around my entire layout. I use manual throws only. I want to interact with my road as much as possible, not sit in one spot and run it by remote. IMO wall layouts are 1 dimension, you can only view it from one side. On a walk-around, you can view scenery/structures from the back side, too. This adds to the realism.
My layout is a 8 x 12, basically a 4 x 8, a 4 x 3 and another 4 x 8. So everything is less than a 3 foot reach, from somewhere on the layout. The 3 sections are bolted together, so if I want to move it or add another section, it will be easy.