I don't really get why people are so focused on the lack of horizontal scaling. They already have 11 IIS servers, that seem like horizontal scaling. As for the

I don't really get why people are so focused on the lack of horizontal scaling. They already have 11 IIS servers, that seem like horizontal scaling. As for the databases: People underestimate modern database servers and a well designed database layout. What would you even replace it with, that doesn't complicate the setup? I like SO approach, maximum utilization of the hardware and don't try to be fancy, if you don't have to. Less hardware to manage, it's easier to find people who can quickly be on-boarded to the team, easier to debug.