Personal Opinion here so please don't flog me too bad
All the speed tests are totally a waste of time. You can have all the bandwidth in the world and go to a site to download your "file" you're looking for and if they are running a dialup connection well that's what you're gonna get.
Traffic is traffic. If no one is on the highway you cruise right along, but as soon as it's rush hour forget it.
Bandwidth is nice but putting all your faith in a bandwidth test. Bah it's a waste of space, time and bandwidth alltogether.
When you get DSL/Cable yada yada you're getting bandwidth. So test away my friends. I know what I pay for and what I get.
Life is good isn't it? Dialup's I feel for ya!! Really I do. Bandwidth will make it to before too long. Rest assured.