Plenty. Music and books in particular. I'm usually behind on making legit buys, but I treat piracy partially like a library where I can try before I buy.
That isn't saying I buy everything I pirate, I don't. But if I like it enough to keep the files, I'll wait until I find a good sale and eventually get a legit copy in some format.
I also do it in reverse, where I'll buy something, but pirate a digital copy when it's more convenient. That's typically for paper books and music on vinyl. Sometimes I'll even pirate a copy of a CD if I'm not up to dealing with the ripping (disability means I don't always have stamina for everything, so stuff like ripping a cd is low priority).