As I have noted in previous posts, I believe that one of the main weaknesses of all Logos package levels is the lack of a top-shelf Bible dicitonary/encyclopedia. Last week, I upgraded to Gold (giving me the Baker Encylopedia) and purchased the ISBE because I knew that I wanted that resource. Tonight, I really used them both for the first time as I began gathering background information for preaching through Hebrews.  After spending a couple of hours working with them, I feel that the money is well spent and I have two resources that I will use all the time.  However, after comparing several articles, the ISBE seems to be superior overall - although Baker does have its worthy sections. 
My question is regarding the Anchor Yale Bible Dictionary:  Many say they find it valuable, but how does it practically differentiate itself from these two aforementioned resources?   I seem to remember the Anchor Yale being on sale for a substantial discount at some point last year. While I probably would not pay the full price for another dictionary, I would like some insight about it in case it goes on sale again in the future.  Trying to decide if I should add it to my list of "get it at the right price" resources.  Thanks in advance for your insight.