Mostly because it's doesn't work on more than one voice at a time.
I asked this question because of recent songs by Blake Shelton, Tim McGraw, Colt Ford with Jason Aldean, and Jerrod Niemann. I also noticed this on Wikipedia...
"According to the Boston Herald, country stars Faith Hill, Shania Twain, and Tim McGraw all use Auto-Tune in performance, calling it a safety net that guarantees a good performance. However, other country music singers, such as Allison Moorer, Trisha Yearwood, Vince Gill, Garth Brooks and Martina McBride, have refused to use Auto-Tune."
Okay, now let's move on to more pressing issues. Like new Big & Rich music! John told me that a new single is on the way after the 1st of the year with an album likely following next spring. He actually pitched some of the new cuts to Luke Bryan, Jason Aldean, and Jake Owen, but inevitably decided to keep them for Big & Rich.
He also talks about the possibility of Nashville Star returning. Audio is below.
John Rich's TV special, "Rich at Night" air tonight on the all new TVGN.