With the new merge coming up removing servers would be a bad move. Also just think about how the fiber optic connection will massively improve gameplay. If it is an improvement it is definitely not a waste of money. If we had the perfect number of servers for example to have them full all the time this would mean that someone somewhere is unable to play. You need excess servers to cope with the overflow however yes maybe there could be a few less to try and fill more games and potentially save a small amount monthly for the server. At the end of the day Chad and the devs do what they think is right for the community.