No, not checked out the value of what I have yet. I once saw a "wanted" ad for the Pistols original Never Mind - album. I have a it, and £1000 was being offered! Yippee. Good start!
I know there's a rare Stranglers coloured vinyl album as well, and I still have a record sleeve with the Beatles autographs on it. That one should be worth LOADS, I reckon! : )
Then I have a never-played Marillion single, signed by Fish.
It just gets better and better Arch!