When playing Eggwars with others I usually encounter people who drag the game on for long periods of time. So when doing so I believe we could implement a feature allowing generators to upgrade after a certain periods of time. (this would include generators at middle and the players own island)
By adding this feature is then going to mean games will go by faster, it will make it easier for the players and the emerald generators would have a use. which might lead more players using the emerald generators. This could also mean that the emerald shop would have more of a use and could be used more regularly.
if you could react with:
p.s this would stop @Adxm hating on the emerald generators and calling them useless.