I thought I'd digitize some of my Zappa vinyl, but couldn't find a couple of titles at first. I looked on iTunes and there was surprisingly little Zappa. I looked at Amazon.com and the prices of some of those titles were extremely high. The last I knew, you could go to any CD store and buy Zappa CDs at a regular price, but not anymore, apparently. Look up Zappa on Amazon or CD Universe and you'll see what I mean.
I did find the rest of my Zappa collection. I have so many they're on 2 different shelves. I did find Over-nite Sensation, but not Aprostrophe. I guess I'll have to live without that one.
So what happened to Zappa's music as far as availability? Doesn't it sell anymore?
The oddest thing is the few contractual obligation albums he once made, basically garbage, like Studio Tan and Sleep Dirt. Those ARE available! Just not the most popular albums. Weird.