As it stands, leaping on the 2Gbps option may be a bit premature unless you're swimming in money. The more practical option may be to wait for Comcast's early 2016 upgrade to DOCSIS 3.1, a cable standard that will make 1Gbps practical for many people, not just those lucky enough to live near fiber optic lines. You don't even need a gigabit to stream 4K video, after all, and two may be overkill unless you regularly transfer enormous files. It'll be a while before internet services are so bandwidth-heavy that Gigabit Pro is more than a luxury.

[Image credit: AP Photo/Gene J. Puskar]