Cloud Computing Costs on Amazon EC2 - Web Hosting Talk: "is to start with shared hosting or a cheap VPS. If you run out of resources upgrade to a dedicated server. Upgrading/moving hosts is easy. Buying something that you may or may not need is a bad idea and frankly a waste of money.
Bottom line is that no one can tell you your hosting requirements until you actually host with them and they see what resources your website is consuming. Yes they will pretend to know and will try to sell you something really expensive. But then they are only preying on your ignorance."
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