So are you folks saying if you list your house for sale at an asking price and get multiple offers in excess of the ask..you'd take the ask because they were first? Really? It's a bidding war and that's how reality works.
Unless the bidder promised to sell at the first full offer, I fail to see the issue.
It's a free market and capitalism. Upping an offer above ask isn't a "dick" move, it's how you do business. If the original guy trying to buy doesn't like it, let him offer more.