Should I accept offer?

[Arthur Kraamwinkel]

I am selling my first flip, in fact its the first house I have ever sold. Its been on the market for four weeks in Adams MA. After going back and forth a buyer is within 2250 of my goal but refuses to come any closer. I am asking 134,900, have gone down to 127,900 as is. They want me to pay 2250 in closing costs or they will walk away. Should I accept? Its the first offer I have received but the house is getting lots of traffic. Average time on market for comparable houses in my market is 66 days.