I recently went shopping for a cable modem. I noticed there was the basic (~$50) model and the more expensive (~$100) model.
The more expensive model said it could demodulate up to many 100s of mbit/sec off the cable and was able to handle gigabit ethernet to the house. The more basic model could do up 34 mbps off the cable, and had 100 mbps ethernet to the home. Since I'm skeptical if and when the faster speeds would ever be offered by my provider, and skeptical as to whether the infrastructure going to my home could handle those speeds, I went with the basic model.
Is there any reason to purchase the more expensive models? Are they going to be better in any other way then the ways listed above? Is there any reasonable expectation that the average consumer cable companies will be supporting higher speeds that justify the more expensive modem any time soon?