It really depends on the kids. My DD played with toys for a lot longer than my boys. My oldest boy played with toys for a lot longer than his younger brother. He was into Legos and K-nex and as an almost 16yo will still play with them sometimes (he acts likes he's playing with his youngest brother, but he enjoys it). My middle son who is almost 13yo, transitioned to mainly outdoor toys by the time he was 6-7yo. My 6yo is a combination of his brothers. He loves to play with the outdoor toys, but he still likes certain toys (Legos, Hot Wheels, etc) and he's now getting into K-nex. He also loves video games, but I limit those. The toys do get smaller at least.
We were happy when we could get foosball , and ping-pong tables and an electronic basketball. They are things that they whole family can play with.
I need to clear out a bunch of the old toys since my youngest has grown out of a lot of them.