Mines and pumps

Is there a way you could up the level on pumps i relized you can max them at th8 and they dont do much in the end unless the are left for a day or 2 and then its useless because players attack you i noticed attacks give more than the pumps and mines along with seeing all the upgrades with defences and no resorces upgrades in the process it would add a bit more balance to those who like to upgrade and not attack that much (excluding dark elixer) unless you add that another level for th 11 since things do get really expensive at that point.

I actually like the idea of upgrading mines pumps and collectors