OP post back what you decide to do. We are the rental car family and would never go to WDW without having a rental car. We like to dine at the resorts and love the fact that it takes about 15 minutes to get to another resort. We don't like the buses at all. Yes, we try them every now and then and we always come back and say we won't do that again. I'm happy that Disney makes transportation available for everyone, but it's not for us. We always start a trip with a stop at Publix or
Walmart for adult beverages and groceries and sometimes a second trip. We always go to the Disney outlets (sometimes twice). We like to zip over to Margarittaville for lunch sometimes as it's always great to get a great cheeseburger (but we are AP holders for US/IOA so parking is free for us + plus a 20% discount at Margarittaville). We usually stay at an EPCOT resort, so we do walk to DHS and EPCOT. I can normally get a great rental car price. We just returned and I paid $115 after taxes for a week rental on the National Executive Aisle and had a Sienna minivan. I would've spend that much or more on maragritas and beer if I bought it at the resort pool bar instead of making my own. Yes there are some downsides, like walking from your parking space to the tram or park. We are early birds so normally get a good space at MK or AK, plus we are walkers and enjoy the extra exercise. Sadly, I can't even get my adult kids and family to use DME anymore after a bad experience one year. So when they arrive after us, we drive to the airport and pick them up which only takes about 30 minutes each way and the tolls.