Every year at Christmas my girls (5, 9) ask for all kinds of toys and never play with them... They have a Barbie doll house they haven't touched all year (they got last Christmas) and for some reason, they want another one?!
They love to dance and sing more than anything else... I find my 5 year old in the garage with me working on my motorcycle a lot of times... and my 9 year old is often times found on the Karaoke machine (or singing to online Karaoke songs)... I kind of find this funny considering they have a room full of toys... but, I figure as long as they are having fun and not doing anything dangerous, more power too em!
I remember when I was a kid playing inside the boxes more than with they toys that came in them LOL! I'm pretty sure that's normal... And yer kid playing with a voltage tester is really neat! Next thing you know he will be an electrician! Very cool if ya ask me!