The answer to the question is easy in my mind. Tradition. We love our long line of traditions and UGA. Glory, Ringing the Church Bell, Tail gating on the North Campus lawn, etc..
Look at the amount of turmoil caused by the changing of our traditional uniforms. Imagine the ruckus changing the breed line would cause. You go and get a bulldog from any old breeder, we are no different than any of these other pin head schools would sale their tradition for a few cents. I am willing to wait and I'm willing to keep the UGA mascots where they traditionally came from.