why does most of the buildings have to have 100 marble to upgrade?

[blkfx7]

Why does most of the buildings have to have 100 marble to upgrade? It isn't fair to those who can't buy the extras, when needed to get the resourses. And why does it take more then a 125 stones just to get one marble stone.? why cant you make 1 marble for every 75stones ? You can't finish the buildings you are waiting to upgrade. because you have to wait just to get another 100 marble. And then you have to build more masons just to get enough stone to get over 2 marble in an hour. I was on here for two hours and i went from 175 to 880 stones, and not one marble. And how come you have to wait to get 10 swords, just top make 1 soldier?

[FallenHalo]

The requirement for upgrading building varies depending on the type of building. Higher levels will require gold, wood(HW,EW) and/or stone(marble,granite) of some sort. This is a slow paced game unless you invest on items in the market/trade or pay for gems with real money. Get ready to pay to upgrade one way or another, as it is with all browser based games.

[Bobj]

At level 17 you can build a marble mason, it's a much faster way of getting marble since you don't have to do a conversion. It's located in the advanced buildings tab.