certified rebuilt transmission

If I were to buy a 1999 Suburban, and the transmission goes, whats a ballpark figure for the GM certifed rebuilt transmission at the GM dealer? Thanks.

$2400.00 +/- is what I paid at the Chevy dealer. They do stand behind the warranty as I had to have yet another put in my 99 Suburban 3 weeks ago. Hey this one lasted 17,000 miles :) they only replaced the valve body this past time.