So every private island is running on one CPU per sim
http://secondlife.com/knowledgebase/article.php?id=329
Are the machines going to be replaced with new machines over time? What are the chances that if someone sells you a really old island that then the island has some old machine running it?
Like if there is an island that was put up on 2004 and now its 2007, it will be soon 2010 and at that time the machine would be 6 years old. So the newer the island, the better it runs because LL gets better machine with the same amount of money in the future.
And why does it take a whole CPU to run just one island?