For current or future law students Black's Law Dictionary is an essential reference book for your library, and as one of my professors told me, "if you don't want an abridged education, don't buy the abridged version." You'll also gain access to an online version of Black's through any Westlaw account, but it's one version behind, and the UI isn't as easy to navigate. I think the hardcover dictionary is worth the money. Finally, a word about the Deluxe Edition: no. I can't see paying almost double for what it offers. My advice is to stick with the Standard Edition.