wow. you fell for the hype, didnt you?
next, you'll spout the standard DSL bullshit.. "Cable is shared, DSL is not"
DSL = cheaper because its SLOWER.
less latency = false.
LOL @ hype. I freakin' worked on building ATT's DSL network in Ohio, Indiana, and Michican, and also Cablesystem's cable network in NW Ohio. I do this stuff for a living.
Cable has higher top speeds because they're able to push more bandwidth through coax than through the unshielded copper used in phone lines. That "shared vs. dedicated" thing is actually true, but not in the way you think:
- Cable has higher bandwidth connections on the far end, but their backbones don't have nearly enough bandwidth available for everyone to be using their connection flat out at the same time. They count on everyone maintaining 10% or less utilization. There are only 2-3 sources for this bandwidth (in this area, it's supplied by Sprint and Level 3). Therefore, if utilization goes above that 10% threshold, the whole network attached to that particular node will slow down.
- DSL maxes out around 7-10mb/s, but most DSL providers plan for 30% or higher utilization. Therefore more people can use the network without a slowdown. Also since DSL is limited on it's coverage area (it bleeds off after 15000ft from the source), there are more nodes set up---meaning more aggregate bandwidth is available, so speeds are more stable. This also results in lower latency connections.
I could write a whole chapter on this subject, but that deals with the point you were speaking of.