He likes superheros, lego, football so obviously some starting points there. But, what I really want to find (& never have with ds so far!) is something that he really engages in & spends hours playing with. He isn't into play Mobil type stuff, not very into matchbox cars etc either.
Ideally something he can play with/do on his own rather than always needing an adult to play with him.
Ideas? Cost not important for now - can be main present kind of prices, or stocking fillers - just give me some ideas please!!!!!