Ever since visiting the super-sized SUPERNAP data center in Las Vegas three years ago and seeing the significant technical and hence business advantages that scale can bring to cloud-era data centers, I've been a strong advocate of colocation facilities. Past writings include an analysis of the state of enterprise data centers in two subsequent reports in 2012 and again last year. A recent assignment required me to assess the pros and cons of colocation hubs for enterprise IT and I'm more convinced that renting, not buying your next data makes plenty of business and technical sense.