Replying to an earlier post

They used to charge you more for unlimited data if you didn’t use their modem. Renting their modem plus getting unlimited data was $30/month, but just getting unlimited data with your own modem was $50/month.

Not relevant any more though, as (at least in my area) they completely removed the data caps.

I’m so glad I have a local ISP that provides 10Gbps for cheaper than Comcast’s 1Gbps.

Replying to an earlier post

In my area, they removed the data caps last year, when they also rolled out the higher upload speeds (eg the gigabit plan now has 350Mbps upload speed instead of 25Mbps). I don’t think they’ve rolled that out everywhere though.

They also have a habit of keeping people on old plans that are either slower or more expensive. If you’re still using Comcast/Xfinity, check their site and see what they offer to new customers at your address. (you may need to use an internet connection other than your Comcast one, otherwise they may detect that you’re an existing customer)