'Godfather' of DOCSIS Looks Beyond DOCSIS 3.0 → ATA100=docsis3.0, ATA66=docsis2.0 samepattern...............

How many can sustain 100mb/sec on their harddrive? None

We see throughput of 50-60mb/sec and read/write performance are far below that

Which mean that user at 50mbps on cable only see a fraction of that and upload are much lower

I thought that comcast offer 22/5 for 62.95 and 50/10 for 89.95 in select area that compete with verizon fios so in most area 6/1 and 8/2 is the best you can get from comcast internet. I'm no worse off at 6/1 say 19.95 a month for 6 months promotional deals
regular price 42.95

They still honor 19.95 if you ask for it hoping you will stay for at least a year

I think your getting your Megabits and megabytes confused.

Drives are either rated at megabits or mega bytes.

Sata 1 is 1,500 mb which is Mega Bits or 150 MB which is megabytes.

Sata 2 is 3,000mb which is Mega Bytes.

a sata 2 hdd normally gets around 65MB throughput which is 520mb well above 100/mb/s

So like I said you got your MegaBits and MegaBytes confused.

Its gigabit that hdds (that are not raided together) cant get the right speed.

I can it's called getting a better hdd, or raid 0 two hdd's together, a lot of people do it now, and it's really easy to do.