I have a '07 Tundra double cab 8 ft bed 4x4 with all the towing options. I get 13-15 combined driving and about 17 on the hwy. The 4x4 costs you 2 miles per gallon. Just turned 100k on the clock, I am still very happy with it. This is a very capable truck. No, it is not an F250/350, however I snatch around 7-8k with it with not issues. I pulled 9.5k once, it handled it fine you knew you were towing.
I did have s couple of things covered under warranty, otherwise its gas, oil, tires, brakes, one battery.
The 8ft beds are a little less common than the 6.5ft. When you get the crewmax cab the bed is 5.5 ft, however the rear seats recline. Sure would be nice to get that with an 8ft bed....
FYI: Have a '96 Explorer 5.0l V-8 that is still going strong. No Ford bashing here. Yes, I am the only owner.