When big airliners are landing, the gear wheels are immobile, thus the tires will get significant stress when touching the runway at ~150 knots, with such a mass pressure upon them. Everyone knows the dark rubber smoke which appears on each landing. The result is that the tires will need to be replaced after a few (or more) dozen landings.
Now, I ask you : why not putting a small electrical motor on the gear, to accelerate the wheels near the landing speed just before touching down, avoiding the abrasive contact shock thereby the degradation of the tires ?
I think it would be economically wise on long term. Just think about how many times an airliner needs to change the tires because of repeated landing shocks that reduce their size until the security limit. Moreover, tires would be much economical to acquire, not needing to be specially reinforced to support dozens highly abrasive landings.
I bet you'll come with the "weight" motive, but I think those electrical motors doesn't need to be big, the accelerating of the wheels would be in the air, without friction, so no need to huge power. How heavy two main devices plus one smaller device for the nose wheel would be ? 100 kg overall ? What is 100 kg besides the 560.000 kg of the A380 ? Not even talking about the tires weight save.
And remember, a big airliner like the A380 needs not less than 22 tires replacement !!
Photo © Tony Woof
Photo © Luis Tena Orozco