I would be interested in the Colorado, too, if every single GMC (excepting the Top Kick with the Cat diesel) I've owned / still own didn't completely come apart before 200K miles....
I've got a little Sonoma now, 200K miles, rebuilt engine already, and it's done. Motor mounts, drive line issues, front end issues. Same mileage Toyota still runs like a sowing machine, and has another 100K life left. Two full size GMC half tons, same story. 200K on them, and they are just coming apart at the seams. Both relegated to on farm chore trucks. Still happy, since I bought one for $1,000 and the other for $500. Try that with a similar mileage Toyota...
