We've been extremely successfully in maximizing utilization of server resources for a hosted site. Based on your site requirements, expected & surge traffic, we spec out the server requirements. Once deployed, the most important part is to optimize its utilization i.e. say a custom-spec server presently supports 200 concurrent users. We analyze, run tests, monitor, and perform optimizations which have even helped the same server to support upto 2,000 concurrent users thus reducing the TCO and greatly improving the return-on-investment for your business or institution.