Need some help from my knifer friends

. I called down to Parker's about a week ago, and they informed me they had no idea when the next Vol of the price guide would be out. I did a search on ebay, and there are a couple of new guides there for sale. Has anyone seen these, have a comment on the value, completeness, or are they a waste of time

? As we all know, certainly, some knives are valued (actual) at much less than book (look at the classics) and some equal to or more, its a buyers market, ie: what will the market bear for that particular knife, 'market' defined- being the buyer.
I recently purchased the "new" Remington 'past and present' guide and was underwhelmed. This subject seems to be ongoing, and when Parker doesn't know when they will re-publish (hopefully with better proofreading)(been almost two years since the last one now)
How much do mint knives (or just,,,,,knives (of some value)go up in price for one year??)
Any comments are welcome, and direction to literature of consequence is appreciated and important. Thanks Folks

-Glenn (aka ilikeknives)