Free: Contests & Raffles.
I shoot a 7mag., and I love it. I don't know that it is neccesary to have a magnum, but I've never lost an animal with it. On the other hand, I just sold my .338 mag., and I did lose an elk with it a couple of years ago. Shot placement and taking ethical shots, are far more important than caliber and the amount of powder behind it.
I love hunting with any rifle. I just happened to have a couple mags and a couple standard issue rifles and love them all equally. I yes everyone needs every gun every made.
Magnums are for men.