I had intended to accept best offer, but I see your point. I am not ebay, but I will accept offers on a first come first serve basis (based on my email-which means offers on the board may be slower getting to me than direct emails). Increases should be by no less than $5 increments.

Full disclosure- The offer is from a person not going to convention, my preference is to sell to someone at convention so I can complete transaction there rather than ship. The prospective buyer is aware of that, and is aware of my efforts to better the deal (I doubt he will increase his offer).