[Nightrain]

Your comparing apples to oranges.
the true way of knowing who got the better deal.

Is comparing the sold price to what the local market is selling the identical item.

Apart from that, as stated by someone earlier. if at the time you made the transaction you felt you made a good deal then that ends the matter.
If you got ripped off or found somenthing better later on then to bad, no return or refund policy in place.