said by mglunt :

Forgot to mention the $12-$15 that companies like Comcast charge for not having TV. $12-$15 more AND they give you a slower speed.

As with most providers, bundling two services (Comcast Cable TV or Comcast Digital Phone) can net you savings:

# Economy: 384kbps/384kbps : $29.95 (not available for new subscription)
# Performance: 6Mbps/384kbps : $42.95
# Performance: 6Mbps/768kbps : $42.95 (select areas)
# Performance Plus: 8Mbps/768kbps : $52.95
# Blast!: 16Mbps/1Mbps : $52.95 (select areas)
# Blast!: 16Mbps/2Mbps : $52.95 (select areas)

said by mglunt :

No, it wasn't.

Comcast HSI is almost $60 a month for their slowest non "economy" plan. The $42.95 price is if you have their TV.

# Economy: 384 kbps/384 kbps : $39.95 (not advertised)
# Performance Lite: 4Mbps/384 kbps : $42.95
# Performance: 6Mbps/384kbps-768kbps : $59.95
# Performance Plus: 8Mbps/768 kbps : $67.95
# Blast!: 16Mbps/1Mbps : $67.95 (select areas)
# Blast!: 16000 kbps / 2000 kbps : $67.95 (select areas)