Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Sadly, this IS the most complete published guide...

Overstreet is the bible for collectors of comic books; a sad fact, considering how lopsided its representation of comic book publishers is. I accept that not everything printed can be represented in a guide, but from the look of Overstreet, everything from either Marvel or DC can be- even a recent Marvel title which had poor sales and remains in low demand is represented here at its original cover price, but where are the independent titles which have enjoyed a substantial share of the same market? Where is the Gold Digger, for example, whose sales held strong even during the B&W bust, and which remains in demand today? It's not a bad guide, really... but for the $22 US cover price, I expect something more thorough.