placing one kit along a side wall means a lot more money needs to be spent on cables, be they speaker or interconnects.If you listen to a system that you don’t care about getting the best out of it, then that makes sense.
My rack is vertical, but plan to go low horizontal soonThen you’ll loose even more Imaging and Depth perspective, why not throw a TV into the mix also, then you can really listen/see midfi
Most here spend a small fortune on their systems, it’s false economy not to try to get two of the very most important aspects, Imaging and Depth perspective out of it, in all their glory.
And if that takes a few more bucks for longer interconnects or speaker wires, it's a BS excuse to use it why it's not done, it’s far better for your listening pleasure, probably cost as much as a couple of boutique snake oil fuses, or BS thingamajigs.