Does anyone know how significantly the content has changed in the revised editions of WBC volumes: specifically Word Biblical Commentary, Volume 19: Psalms 1-50 (Revised) and Word Biblical Commentary, vol. 32: Micah–Malachi (Revised) and Word Biblical Commentary, Volume 24: Isaiah 1-33 (Revised Edition) and Word Biblical Commentary, Volume 25: Isaiah 34-66 (Revised Edition)? I have all the original volumes of these and don't particularly want to buy them again if it isn't worth it.
Also, if you have bought any of the revised WBC volumes, did they replace existing volumes you had (i.e., is the resource ID the same, or did they assign it a new resource ID so you could keep the old one too)?
I find that I do have some of the revised volumes (vols 6A, 21 and 43), though I have no record in my Orders page of ever having ordered them. So they must have come to me automatically, no? Or maybe it's because the revised versions of those volumes were already out when I bought WBC (in 2007) and these others have come along more recently.