Good question. There are a lot of factors that could change the right answer. So here is my best shot at helping.
1) Let's talk and let me get the specifics on the amount you will be gaining on it.
2) Let's run that by a tax pro - if you don't have one, I have a few I could refer.
3) Selling your home at this time in Grapevine may be a quick process. The market is hot in the right price range. You could find yourself in a bidding war between buyers which is really a good thing.
I hope this is helpful and when you decide to sell let's talk, my advice is always free.