I believe the bluebook does NOT have all the history and background information that can be found in the
RedBook. I also believe the only dealer that buy using bluebook prices are the ripoff dealers. It has been some time since I looked at a bluebook but at that time the prices listed in it were well below the typical wholesale prices. The only good use I cn think of for a bluebook would be to level a wobbly table.
As for the
RedBook, the prices should be ignored (with the exception of using them to determine relative rarity within a series) but the history, series information, coin specs, mintages, etc make it will worth owning a copy and maybe an update every ten years or so. And frankly if you don't have one, get an older copy too from before they had Bowers write the history section in the beginning. Bressett/Yeoman did a much better job of it.