You don't see it as much on this site as some of the others, but there are lots of folks doing massive doses that probably don't need it.
But hey, I'd rather drive an 800hp car than 400hp, even though I don't need it can hardly ever use it.
Why not??? Except for the added cost, risk to your health, precedent for all future cycles, and probably loss of focus on the food & workout portion that is far more important.