What bothers me about upgrading heroes isn't the high amounts of dark elixir or the time, but rather the fact that they can't be used while upgrading. This makes clan war attacks and often regular raids much more difficult for me. Allowing heroes to be used while upgrading would not negatively affect Supercell, as people would still have to buy the same amount of gems to max them out. However, it would really help players like me that don't like not having a hero for 3 clan wars straight because it is upgrading.
Overall, Supercell wouldn't lose any money, but the game would become much more enjoyable.



