when you get towards the higher end of a th8 your upgrades take days and days, if you raid consistently it doesn't take long to max out 4 million capacity and if you have two builders free up on the same day you may need to drop 4+ million on two upgrades. so having 6 million capacity is pretty key at the later stages of th8 because you want to keep raiding while you wait and you most likely want to work on upgrading your walls as well which means you need to have well in excess of your next upgrade cost.





