(Good question)
I don`t know jeff it may be like you sead just another selling point.
But when i look at buying a bow I seem to look at all points.
Bow for bow? Including the weight"

Why i look at the weight?
I think its like in the back of my mind that i see myself carring that thingall around through the woods for long distances on a hot dayor something? "i guess"

I know i don`t like carring any extra weight around if i don`t need to..

As far as shooting is concerned? I like a little weight.
Somewhere around a 4lb bow with all the other extra`s on it, sights, ect.. is plenty for me.