Almost all browser games tend to open more servers more frequently due to the fact that this is the best way for them to make money.

It's not exactly a cliche scheme - they need money to run these servers. This post was last edited by Godsu* at 2016-9-6 08:31

The amount of money the company/devs get from people topping up on a newly opened server compared to the amount needed to maintain the server is a huge difference and will make up for its cost.

It is 100% guaranteed that there will be a huge amount of spenders for any newly opened servers which is why they will keep on doing it in the future and will merge servers if necessary.