Yes, well said Michael J. There are too many Bible commentaries, and they are TOO FAT.
I usually use 2 commentaries per Bible series, one thin one with exclamation marks and one fat one. Now that I'm writing for Matthias Media, sometimes I only read my own ;-) . At about five paragraphs per chapter of Bible, I reckon I've reached the limit of my learning and by coincidence, the limit of what most people want to read.