I used to keep my guitars on hangers on the wall, but I ran out of space.
My rack is holding 6 x six string electrics (5 with trems), 1 x bass, 2 x acoustic.
The acoustics are a little bit tight and I keep the deepest one at the back but other than that it's a great product.
Tip - when you buy it, fill any spaces with cheap guitars then swap the ones in the middle of the rack for more expensive models and your partner will never know (unless your young son, with eyes like an outhouse rat, points to it and says "that ones new").