*Meekly steps up to the microphone, taps on it* "Is this thing on?"

Well, the book and the online rarity guide lists the PS1 Namco Museum Vol. 2 at a rarity of 1 and Volumes 4 and 5 at a rarity of 2, with prices listed at $5 for all. I think they're quite a bit rarer and pricier than that; I've only seen two Volume 2's and one each of Volumes 4 and 5 in all my collecting and travels (all of which I snapped right up). I don't find them to be the least bit common.

Also, should there be separate listings for Volumes 1 and 3 to distinguish between the original packaging and the Greatest Hits packaging? I've only seen the original Volume 1 once and never have I seen the original Volume 3 (I'm still looking for this one!).

(This is just what I've observed from travelling to brick and mortar stores and not online.)