I have two adult sons and they are such polar opposites. From everything to what they like and what they do, they are 180 degrees apart. My one son is into photography and languages, wines and artwork. My other son is all about electronics, cars, motorcyles and anything that goes fast. He lives in an apartment so we get his mail here because everyday it seems he gets a package. What's in those packages? Well, I had to finally ask. His response was that it was performance parts, not only for his car for his two bikes. I personally don't get it. I buy new things because they work and I don't have to mess with them. He buys new things and then keeps buying things to add to them or make them better!