Another thing to mention as difference is warranty, scheduled maintenance, and service intervals.

Both include scheduled maintenance while under warranty.

The '04 covers 3 yr. / 36k mi., while the Alpha is covered for 4 yr. / 50k mi.

Service intervals are every 3k for the '04 and 6k for the Alpha.

Not sure how much warranty '04 models would have left by now -- depends on how long the truck sat on the lot before it was purchased...

Also, many Alpha's are sold as demos, which adds 6 mo. / 6k mi. from in-service date to help them sell.