Many web hosting services offer a low "starting price," but require you to prepay for two or three years of service to get that price. After the promotional period, the renewal price for some web hosting services can be two, three, or even four times the initial promotional pricing. While the initial deal might be incredible, the cost of transferring your site (or paying the added fee) in a couple of years may be something to consider.
Whatever the case, this won’t reflect well on your website or business. If you’re a professional or hobbyist, consider this scenario: your business/blog is mentioned on the radio, TV, or in an article on a highly trafficked site. Suddenly you have 60,000 web visitors . . . and it’s gone. Your site crashes under the stampede. Poof! There goes all that free publicity.