There were multiple categories, and most of them in the lower range, naturally. Those of us who own stupid amounts were lumped together as "more than 1000", "500-1000", "200-500" if I remember correctly. The lower ranges were far more fine grained. What surprised me was how many that fell in the category of roughly 25 game books. For me that sounds a lot like having one favourite game line, or maybe two. A lot of people also had less than 10. I think those people who claim you only need one rule book and some imagination might be onto something. The next big bump were the collectors, and I was in the higher end of that range, 200-500.
Apart from all the pictures that gives us about the size of most game libraries, it gives me an interesting comparison. I just counted the amount of game books I have in my library now, since having moved and left most of what I counted in the former poll in storage. That way I could easy see how much I have accrued over the last 24 months, and maybe also compare that to the time the rest of the collection have grown. After some math I found that I buy roughly 6 books a month, or closer to 7 if I include magazines. Should I be lucky that I will have ten years or so to find storage space until I reach the "more than 1000" range, or should I be scared that it took only 24 months to surpass the size of most of the collections in that poll, again?