I'm only at just over 150. But, I really hope they don't go to another disc based system for movies etc. I really don't want to have to buy more movies on discs if they come out with something like 4k movies.
I've heard people argue both ways..box sets as one movie and box sets as multiple movies. I count them as one movie in my collection. I use DVDpedia to catalog and track my movies and that program tallies a box set as one.
I honestly don't know anymore. I stopped keeping count months ago, but I'm certain it has to be just over 100. It will start growing much faster now that many movies are dipping below the $10-15 pricepoint.