Please help me price this book

[PDorr3]

Well I have this castlevania book just sitting around called castlevania the official hint book. Its a 200 page paperback book that covers 6 of the old castlevania games starting from the 1st one on nes. It was published in 1992, and includes all information on each games such as step by step walkthroughs (with screen shots) , hints and tips, and enemy and character guides. Its in nearly mint condition. I check ebay, and have yet to see one of these on there, but amazon has some up:
http://www.amazon.com/exec/obidos/tg/stores/offering/list/-/0874552613/all/ref=dp_pb_a/102-2136760-3046560
in the $30-$50 range. Just wondering if you guys have ever seen this book before, and how much I should expect to make from it if I put it on ebay. Thanks! (it seems pretty rare)

[Balloon Fight]

On ebay, its pretty hard to make a profit on hint books unless they are
1. Current games, or
2. VERY hard to find

I have seen this book before go for 22 dollars, but that seller may have gotten lucky. I would estimate its worth maybe $18-20.

[SoulBlazer]

Yes, I had that book at one time.

I believe, if I recall correctly, there was a ad for it included with Super Castlevania IV, and I ordered it from them. List price was $14.95.

I sold mine a couple years ago on Amazon for about $30.

I'd say list it on Amazon and someone will snap it up. 95 percent of my stuff I sell on Amazon and most of it sells within a month. :)