I have 15 kilts, and I wear them everyday. I really only wear trousers for costumes any more.
I have 1 "Tank" in my clans muted tartan (Crawford), 2 SWK Standards, 1 SWK Heavy weight, and 11 UK's, including a Black Leather. I also have a Matt Newsome 4-yard box-pleat on order in my clans Modern tartan.