Eh? http://b2b.cbsimg.net/blogs/data-center-infographic__ashx.jpg http://b2b.cbsimg.net/blogs/data-center-infographic__ashx.jp... http://www.techrepublic.com/

Eh? http://b2b.cbsimg.net/blogs/data-center-infographic__ashx.jpg http://b2b.cbsimg.net/blogs/data-center-infographic__ashx.jp... http://www.techrepublic.com/blog/data-center/infographic-the-life-cycle-of-a-server/ http://www.techrepublic.com/blog/data-center/infographic-the... The replacement cycle is closer to 3 years than 15 in the private sector for hardware. Major software releases [including those with full rewrites] happen more often than once every 15 years as well. I'm not sure I buy the full rewrite bit simply because I know things can go horribly, horribly wrong with those. I'd be happier with a 5 year refresh cycle.