I keep most of my decks wrapped in colored bandannas, which double as reading cloths. For my larger decks, a bandanna wouldn't hold a Celtic Cross, so for those I have a coral-colored scarf with a paisley pattern. I have a few spare bandannas I use for my decks that came in particularly nice boxes that I display on my bookshelf.
But I agree, a reading cloth is mostly for atmosphere, plus keeping the cards clean (I do a lot of my readings on the floor). But I likes me some atmosphere when I read. I just have that mindset, I'd feel weird reading without a cloth, a candle and Bub the Crystal Skull overseeing the reading.
One of these days, I may break down and buy a Sulis reading cloth.