At last week's The Cable Show in Washington, D.C., Comcast (Nasdaq: CMCSA) CEO Brian Roberts showed off a 3 Gbps cable broadband connection, which is three times faster than Google Fiber (Nasdaq: GOOG) service and nearly 150 times faster than the current average broadband connection speed in the United States. Despite the promise of this higher speed broadband technology, cable operators' current broadband pricing schemes don't appear to be encouraging consumers to adopt higher speeds. Faster broadband tiers are pricey and not readily available. Article