Let us compare. Seven point five bucks per book, twenty books so far. I have five already. Once I purchase as many as I can, I'll have spent over $150 on a single series without actually finishing it. I think they're to the bit where Koga comes in and is a jerk.
Encyclopedia Britannica is doing a sale right now, so the print set is at $995.00. The normal price is about 1.3k. By buying a pile of Inu Yasha manga, I am forsaking the chance to own 11.538-15.075% of a set of encyclopedias. Argh.
More fun math with Rumiko Takahashi, the Inu Yasha DVDs have three shows apiece, and are MSRP approximately $30. The series ran for a mighty six seasons and a whopping one-hundred and sixty-seven episodes. To purchase Every Single Episode you are expected to shell out fully $1600, more in fact. I am kind of shooting from the belt mathematically, but it sounds about right. I'm just gonna have to pass on that one, miss Rumi'. I like you and all, but...really.