I think I win the weird upgrade prize. If I keep what I have now I pay $5.00 less. If I upgrade from 75/75 to 100/100 it is $5.00 more if I downgrade to 50/50 it's $15.00 or if I go to 25/25 it is $5.00 more. The only thing I can figure is they don't consider 50/50 Quantum anymore and you loose the discount.