I didn't have loads of stuff as a kid, but had enough, and made up the rest with my imagination or hands. Like you my childhood was not full of loads of things and what I had was often second hand as my parents didn't have the funds to buy new. I had what I needed though, and made the rest up with my hands or imagination.
I remember playing an Atari 2600 and thinking it was the coolest thing. Our friends had it. Did I want one? Yeah of course. Didn't get it now and it never affected me adversely.
I've heard those Wii things are fun. Good things for the family to do together.