I believe a lot of early stage startups were not jumping on board EC2 because up until now, it was only possible to use it to augment existing infrastructure. Big companies can afford to have their main data centre and the AWS stuff. A lot of early stage startups can only afford their main data centre (or in some cases main hosted solutions). Not only that, a lot of early startups don't need to augment their main infrastructure as there is no demand for it.<p>I spoke to a lot of friends and acquaintances in smaller companies and startups that all said the same thing: "once EC2 supports static-IPs we'll use it". Now that EC2 has Elastic IPs, I'm sure using EC2 for the main set of servers will be an attractive option to startups and smaller companies.