For $800 I would try and find the money to fly. Are there any other airports within a few hours of your house that are cheaper? We used to drive from PA but started to fly 3 years ago. I will never go back to driving again. I can't believe how relaxed and refreshed we are when we arrive at MCO as well as when we arrive back home. That feeling of no stress is priceless to me.
Edit: Also, don't forget to add in the cost of parking at your resort. At $20+/day (depending on your resort category) that will lower the cost of flying significantly.
Edit: Also, don't forget to add in the cost of parking at your resort. At $20+/day (depending on your resort category) that will lower the cost of flying significantly.