This argument has successfully been made before. There isn't a real reason to buy a diesel I agree unless you tow all the time. I buy them anyway because I like them better. But if you're a GM guy you have to admit the gas engine offering is not inspiring. At least not to me
I agree it could use an update or make the 6.2l workhorse capable but the 6.0 liter is a motor that will last forever. The right 4.10 gearing and it gets the job done fine.