Keep repaired 360 or new Jasper Arcade?

My original Xbox broke (E-74) so I sent it off for repair. That same day, I purchased an Arcade from Best Buy with the intention of refunding it once my original came back. However, the arcade has the internal memory, so i'm 100% sure that its a Jasper.

I have no clue what the repaired unit is. Do you think i'd be better off keeping the repaired unit, or should I put in the Best Buy box, return it for a refund and actually keep the Jasper Arcade?

it won't work. they will check the serial numbers.iam2green

What he said.