Re-running the campaign for every char, every time.

I am so confused, I know most people here hate the long ass maps of acts 3 and 4.

now someone offers a suggestion and all of a sudden

CAMPAIGJN MUST BE DONE EVERY SINGLE TIME ON EVERY SINGLE CHARACTER...

NO BOOSTS ALLOWERD. WE ALL MUST SUFFER!

Why not provide an alternative leveling method like an arena or something else.

Something that can be done after clearing campaign once per league (if people really want you to do campaign every league.)