If you have a Shared Web Hosting account, you may not realize it, but you also share the cost of server maintenance with other clients. This is a big reason why a shared account is reasonably priced. Also, your provider is expected to be responsible for security updates, installation of server software and any other server responsibilities.
There are limits as to what can be put on the webpage though. Every website will be different just like every web hosting company. There is going to be a lot of disk space for some companies that specialize is web hosting but not all of them are going to have an unlimited amount of space.
Just because you have used Affordable Web Hosting doesn't mean it has to be poor quality hosting. There are lots of very good quality hosts available at very affordable prices. Also be aware of what comes as standard with your hosting and what comes as paid extras. Check that your potential host uses a popular control panel such as Cpanel. Some hosts use free panels and although they work fine, if the time comes when you have to move your website to a new host, control panels like Cpanel make the process a lot easier.
Web hosting companies are all over the world and most will state that they provide a 99.99% uptime. This turns out to be far from the truth for most of them. The problems arise after you have chosen your hosting.
The obvious benefit of inexpensive hosting is you will save money every month. You can see a quality Shared Web Hosting UK package for under ten dollars per month with little effort. Cheap hosting is loaded with features to help you to achieve your goals, all at one cheap price.
Windows or Linux: Do you know if your site needs to run on a MS Windows server with FrontPage extensions or does it need PERL, PHP or MySQL? These things you will need to find out if you intent to run a successful small business web site.
My one bit of good advice is do not sign up with any server for a long period of time to start with. It will be cheaper in the long run but at first just sign up for a little while. Try before you buy, make sure that the service provider is able to meet your expectations. If it does, then sign up for a longer period and save money.