Rackspace is very expensive... almost 2x their competitors. At work we left rackspace recently, because we needed to upgrade our server and it was going to jump up to $1200! a month. Plus we found out that we were running on two year old discontinued hardware. Although we still had a SLA that didn't apply to hardware failures, which would be fixed on a 'best effort' basis and could mean a days-long outage. We moved (to the cloud ironically) and got a huge performance increase, for half the price (and that includes paying a company to monitor/manage it for us).