Teehee, I belong to a few of those sites too when I'm desperate, but they never have the pieces I'm after.
I now have more music than the local bookshop. It's official....by about 5,000 books more

In fact, they've even taken to phoning me for views on a book before they order it in, or if they have 'one of those customers' who doesn't know what they want.
Still...I can put my hand on pretty much anything at any given time and one day...somewhen soon...I hope I have everything, then I won't need to buy any more.
So, next job will be to write to various publishers asking them not to print anything more for a while.