Buy-and-hold strategies can actually add costs to the datacenter, as systems age in place. Not only do hardware maintenance and software maintenance fees rise, over time – but the aging of applications also costs the organization money. Investing in a transition from POWER5 to POWER7 resulted in a return on investment (ROI) of more than 150 percent over three years.
An insightful and and compelling discussion by IDC that reviews the primary reason for maintaining current systems -- Return on Investment. IDC studied IBM Power Systems sites that remained on the POWER5 platform long after its initial introduction in 2004. When comparisons to the succeeding generation of POWER7 are made, customers have found that the increase in scalability and performance of POWER7 systems, combined with a reduction in server "footprint"