One of the things website hosts always list is uptime. Many website hosts promise uptime of ninety nine percent or higher. Having dedicated server hosting will help to keep customers on the site which ultimately is the goal.
If a website goes down, the site owner loses customers or viewers of articles. Creating a website is meant to share opinions or to sell items. Even sites that are simply made up of articles and not selling anything, normally have ads or other ways to monetize their site. Any downtime from the website host could take away viewers and drastically affect return visitors. Users are less likely to bookmark or write down the web address to a site that is not working.
Remember to pick out a site that offers great uptime. The extra money spent on this will be worth it. A site that is low cost but has issues with uptime costs its users in the long run by making them lose out on advertising revenue and new visitors.