Yeah, those aren't bad, but like Tobias said, as soon as you add an option it goes rapidly out of control. The dealer I bought my truck from is the largest truck dealer in the northeast. They have 202 silverados in stock. they have one RCSB WT at 24k, one RCSB WT at 27k, and then it goes to 31k and skyrockets from there.
I like my toys and have no problem paying the premium for them, but I think (way) back to my younger, poorer days and it would have been a bummer to have a choice of a stripped WT or nothing.