As announced in another thread: http://community.logos.com/forums/p/28682/312317.aspx#312317 there is new, lower pricing for The New Interpreter's Dictionary of the Bible and The New Interpreter's Bible.
Previously the dictionary pre-pub price was $400, now it is $139.95
The 'Bible' was $800 and now it is $479.95.
Both are still in pre-pub, so it will take quite a few more commitments to get them into publication. Maybe with this new pricing you'll want to give them a look.