Giving in on something like this means you will be victimised again later on. Once you start paying the danegeld it's hard to get rid of the dane.
I don't buy things advertised in spam, but I keep getting it anyway.
This sort of scam is like spam. It is easy to perpetrate the scam and hard to be penalized for it, so it isn't going to go away. Send a few emails and you have a chance of someone mailing you $2000 and probably not getting caught. Not a bad deal for the criminal.
With people like you who give in swiftly, no, it isn't going to go away.