Regular, or “shared” hosting, is when your website shared space on a server along with lots of other customer’s websites. With dedicated hosting you basically lease an entire server, just for yourself, that is not shared with anyone else. There are many advantages to having a dedicated server. Security is one plus, since your website won’t be on the same server as a potential hacker. Also, system resources will be greater, since you never know on a shared service if and when someone might be hogging tons of resources, which could slow down your website.
If your business can afford it, dedicated web hosting is the way to go.