So, you will probably think we are nuts for having done this...we arrived a day earlier than expected last Saturday in order to head off a blizzard on our planned flight day of Sunday. We booked a hotel near the airport as Disney had no rooms for that extra night that I was willing to pay the price for (we were staying value). Next moring nt back to the airport Sunday morning and caught our ME to ASSports. We lucked out and our room was ready!
Here's where we are crazy: Bus to DHS we got there by 10:30 for RnRC single rider 20 minute wait, did Great Movie Ride, bite to eat, caught bus over to AK for Everest single rider. Bus back to resort to grab jackets for evening. Bus to Epcot for Test Track single rider short wait, did The Seas and got one of those yummy Brioche ice cream things in France. Monorail to MK where we had our 3 FP+ booked for Space, 7DMT and Splash. Did all 3, saw MSEP in Frontierland and headed back to resort for night.
Yes, 4 parks in one day!! Crazy, I know and we spent a lot of the time on busses, but we were so excited we had gained that extra half day we wanted to ride all our favorites!! Our FP for our first day didn't start until after 7 pm. Like others, I allow at least 3 hours from landing to park entrance.
So, to answer your question, yes it's worth it for extra park time! Just plan to book your first FP for 3/3:30 or later and I agree don't book any you HAVE to ride unless you are doing them again. I also would not book any ADR for arrival day as you could get charge the cancellation if you have travel delays.
Enjoy! Your arrival day is our Anniversary!