Should I bother reporting a scam?

In response to an ad for a car we're selling, I received an email which turned out to be a scam. Not being a moron I didn't fall for it.

But I wonder if I should bother reporting it, and to whom? Yahoo, since that's where the email addy is? This is *apparently* in response to an ad we placed on Autotrader.com, and I don't see anything out there where they suggest you report scams, like they do on some sites.

Should I bother following up on this?

Email from Kelvin Keller [kelvinkeller61@yahoo.com]:
[snip]
PRICE ACCEPTED:
I have accepted your price and am ready to do business with you.

PAYMENT METHOD:
I am going to make out a total over draft check of $ 16,000 that will cover the cost of your vehicle and the shipping/pick-up.
Therefore,you are required to take the cost of your vehicle ($ 10,000), and send my agent the remaining balance ($ 6,000) for the shipping and the pick-up of the vehicle to me.

BALANCE OF PAYMENT:
The reason for the balance of the payment is to help the agent and the shipper offset the shipping and pick-up bills,paper work and any other necessary expenses that might occur during the process on this transaction.

REASON FOR THE CHECK AT THAT AMOUNT:
The check has already been made by my client before he traveled, on the previous car i wanted to buy for him but unfortunately,it had an accident on a day before the day my agent came to pick-up the car.the business was later canceled and we come across your car on the autotrader.

[snip]

call someone who gives a damn!