One of the most important considerations you should make is how much traffic you expect to receive on your website. For many Websites traffic is not an issue but there are some website who receive thousands and lakhs of visitors per day and this puts a heavy load on the web-server. The method that Dedicated Hosting Provider use to determine how much traffic your website receives is called as data transfer. Data transfer is not exactly the same as traffic but the more traffic you get, the more data transfer you will use.
Using the 16K per page example, 1000 MB of data transfer is roughly equivalent to 30,000 page views. Most Web Hosting provider accounts allow you to use 500-2000 MB of data transfer or 15,000 to 60,000 page views per month. You should always use this as a guide to determine whether or not you will exceed your data transfer limit. If you are creating a new Web-site it is difficult to determine how much traffic you will receive but if you have an existing Web Site, you should have a rough estimate.