I know that there have been other threads in the distant past about this, but I wanted to suggest this again with some concise information.
Reasons to have this dictionary over others:
1. The OED gives the history of the word throughout its usage, giving chronological context quotes for each iteration.
2. It is over 21,000 pages, with more than 500,000 words.
3. It traces variant spellings, regional characteristics, and detailed etymology.
Reasons it would benefit the publisher:
1. They are obviously concerned with piracy, as their old CD-Rom version had clunky copy protection that created widespread issues for users. Using Logos would create a more secure environment.
2. The many features available in Logos seem to lend themselves well to the OED, ie searching, tagging, etc...
3. Due to the nature of Logos users, I think that the publisher would be more likely to sell updates that are put out periodically, especially assuming they were available on Pre-Pub.
4. They could also integrate the Historical Thesaurus of the Oxford English Dictionary as a possible add-on purchase for those who really get excited about English words!