It has become relatively unusual to dance on a properly waxed floor. Instead, we dance at venues with polished or sealed floors, where people are bringing dust and dirt inside on their outdoor shoes, and it is picked up on the soles of our dance shoes. It can be brushed out again, but the brushing accelerates the wear of the suede. We can't win, becasue if we don't brush out the dirt, the dirt itself is ground into the soles, and that too, causes premature wear.
If, however, we dance on a waxed floor regularly, the soles pick up the wax, and the suede appearance is lost very quickly, and there is nothing you can do to brush it up again. I quite regularly use the blade of an old, blunt, knife to actually scrape excess wax from the soles. The soles quickly lose their suede feel, and become smooth. The problem comes if I take my "waxed" shoes to a typical "dusty" social floor: the effect is that the soles pick up a layer of grot almost instantly, and the shoes are very slippy indeed. The only answer I have found, is to keep a small cloth on the floor that is very damp/wet, and to moisten the shoes before I step onto the floor. A better solution would be to use different shoes on the different surfaces, but waxed is my preference when I have a choice: just not TOO much PLEASE!