Well you can believe whatever you like, its not my place to tell people what to do. I'm just here to state the facts - if you don't believe me I've got resources to back up everything I ever say. Now out comes the truth about REAL internet access. The first thing you should know about with any type of internet access is that your connection is only as fast as the slowest link in between you and the data you are trying to get. Nothing is EVER guaranteed when it comes to exactly 'how fast' something will go over the internet.
Cable Internet IS fast.
That's pretty fast. However there ARE some things that you need to consider. Cable is ONLY as fast as it can be when ONLY one person in your town is using it. All the traffic you get is being fed into one T1 connection to a bigger facility somewhere. Now lets figure that you get 100 people on a cable system.