It has happened to me too over the years. I see it like this. At some point in the past or probably in the future, you may have had or will have a super deal on a gun. This then balances out that deal.
If you have the money to error slightly (as in this case) and get what you want then it is a better situation than to really want it but not have the money to get it.
You did not make the worst mistake possible and in time the gun may even live up to value in these crazy times and you have had the pleasure of owning and shooting it all along .
You also learned a lesson,as I did, in auctions, consider all costs and conditions when that competitive nature overwhelms you when bidding.
Enjoy it and don't look back, that "balance" deal is out there.