As a kid I played plenty with both of these things. Yes, I was in BOY SCOUTS and learned to tie knots and camp, but the thing I have the fondest memories of was making 100% radnormous pinewood derby racers with my dad. I'm talking aerodynamic testing and using thin silver tape for completely necessary racing stripes.
As an adult, I still have a penchant for these things. Also for things that are more expensive than they should be. C'est la vie.
I'm also a sucker for really sexy packaging.
Wood blocks PLUS magnets? Awesome.