Devs have really screwed up with these never ending Mith sales. The reason u created mithril I thought was to increase the amount of system wars but no ones needs to do wars when we can just buy it all. End your sales and make people actually earn mithril for a change.
We do 'earn' it, it costs 400m per mith, that's a lot. The bad thing about the sales is exactly that saleS, we shouldn't be having so many of them.
Again, sale's going to very likely end when the war tournament system releases. Until then, they're letting people stockpile in preparation as well as buy mithril for that single epic until the update.