I love Alton Brown!
I also love Kenji Lopez-Alt, of SeriousEats.com and his book, The Food Lab. He has an interesting scientific study on turkey brining. Basically, the salt does do wonderful things to the meat, but brining can dilute the flavor. He says to dry brine with salt. Any flavors that you put in, though, won't penetrate the meat as the molecules are too large (salt is much smaller). It's a fascinating read.
I haven't had a chance to dry brine a bird since reading this, but it's on my to-do list.
I did, however, sous vide a turkey breast "tenderloin" liberally covered with a sodium-free rub (usually I make my own, but I had been gifted Penzey's Galena Street rub, and it's delicious). Four hours later, I served up an incredibly moist, tender, and delicious turkey breast to my daughter and son-in-law. It was unanimous that we're doing a sous-vide turkey breast for the next major holiday. (That is, until I break out the smoker and figure out something there!). Seriously, though, a sous vide turkey breast is outstanding.
Also note that brining can add from 250-400mg more sodium for a 4oz portion (who eats only 4oz?!). If you're on a low sodium diet (as many are in my particular age group), brining has some negative consequences. It means eating really clean for sides and the other meals of the day!