I'm looking at purchasing colocation services for a Mac Mini with A specialist colocation company  - but as of yet I have no experience with OSX Server for hosting websites. I'm looking for a less involved way of hosting up to 80 small (1-20 page, <1000 daily hits) WordPress websites for my clients. All of the websites use caching aggressively.Does anyone have any experience using OSX Server for WP hosting / any ideas as to how many sites it can comfortably (ie minimal loss of speed) handle? My intention is to purchase one with an i5 processor and 16GB of RAM. 
Mac Mini Colocation Usage Case
wordpress;mac