This is why I love Linode ... they do stuff like this, once a year or so and its so fantastic ... they upgraded me from a 328MB linode to 512MB last year for free ... now this ... I wish more companies would follow suit. It inspires loyalty in very subtle ways ... I was going to get a 512MB linode anyway, but with the money I saved, I added their backup service for $4.95 a month ... I couldn't imagine going anywhere…
I guess what I'm saying is if you want to lock in a low rent you need to negotiate for a longer lease.