I would say...over 500, but that's just a guess.
I felt the same way...I sold off a lot of the fragrances I didn't wear. Now, I've found myself seeking the unexplored, the unique and the strange. If I can't what I'm looking for...I try to create it. That part of the hunting process I thoroughly enjoy. Actually, it's how I created Americana Rust (I couldn't find what I wanted in a tobacco scent.)