considering gameplay is instanced in PvE, there really is no "advantage" because even with 8 paragons, other people's setups have no effect on your gameplay
some people are just never satisfied
but lets put it this way.... does that mean that i am at an advantage cuz i decided to buy all the skillpacks so my heroes could have all their skills?
no it doesn't give me an advantage, it just shows i'm lazy

now if you were able to use the mercs/heroes in PvP, then you would have room to gripe and complain



