Please. My cable internet bill has been increasing about $1 every other month for the last five years. Sure, it's faster, but my data cap hasn't increased. If I don't make use of that speed, then it really doesn't matter that I have 57Mbps or 1.5. The constant incremental price increases are maddening. What other industry does that? They know that if they just raised my bill in one lump, I would consider alternatives.
Sorry, but giving you more throughput shouldn't really factor into a standard price anyway unless that throughput is significantly above the average (FiOS). It would be like comparing price/throughput to phone modems in the early 80's, or hard drives from the same period.
And if you're getting 57Mbps for $43 through Comcast, then you're definitely getting a significant deal (a bundle perhaps), because that's nowhere near what they are currently advertising. Not even close.