Why I would prefer a web hosting service over running my own server

Most people who have a web site find it convenient to use a web server outside their own home/office. I have one in house, set up for direct access updating. My approach is to use a USB stick to store the updates and just walk across the room, plug it in and upload the files directly.

This is fine for some, but the majority either don't have the interest or the ability to maintain or set up such a system.

What's the alternative? Simple- look for a web hosting service on line (preferably one that offers FTP access). FTP stands for File Transfer Protocol. There a number of handy programs you can download for this, such as "Cuteftp". In this case an FTP account is set up by your hosting provider with a personal password for you. When you have created new pages or updated existing ones,you simply bring up your FTP program, connect with the server and send the files to it (being careful to put them in the right directory and do any other tasks your host requires). It's a convenient and efficient system, and the web server could be anywhere in the world.
One other thing. Having your site set up this way may also have its dangers. If the server has many clients, it is possible one or more may misbehave and affect the reputation of the service. For example, while you maintain your web files with integrity, another client could be sending spam and thereby affecting the reputation of the server, and possibly your reputation as well.

That's the good and the bad side of FTP server hosting. It's your decision. Let it be a wise one!