A few years back, I had a moment of insanity and decided to have a clear out and get rid of my retro stuff.
Fortunately, I didn't get rid of it all, but some of the items I did get sell took me an age to find in the first place and I would love to replace them, including: AdventureWriter, Kyan Pascal, Turbo BasicXL and a number of books.
I keep my eye open on ebay with the usual searches, but I figure it'll take me a while again.