Another assertion without supporting evidence.
If I choose to pay Blizzard $60 bucks because for some reason I decided 'hey, I want to try a level 90 druid', how does that have any effect on you or any other player that's any different than me spending a few days leveling with guild perks and heirlooms. Unless you know me personally, you would never know the difference. So how would one way effect you in a manner that the other wouldn't?
I have yet to see anyone in this thread saying it would have an impact on the game be able to answer that.
Well, I guess I'm just dumb, because that advantage is not obvious to me. Again, please elaborate.