So, lets get this straight.

After Epson replaced the product with an upgrade, you returned the old one to Costco. You told them that Epson had replaced it and they gave you your money back?

You're puttin me on.

Either that or you are a scam artist like I said before.

Why did you take it back to Costco if you didn't intend to try to get your money back regardless of the fact that you knew the item had already been replaced?

Deviant behaviour, Clinton. Very inappropriate.

Borderline sociopath.