I have a feeling that something like the Arris sb8200 or s33 would be plenty fine if you didn't care about gigabit+ speeds and "up to 450Mbps upload speeds", depending on the quality (I know there have been some Arris devices with issues in the past but I'm not current on what's good and not) but both of those are like $150 on Amazon, instead of the $300-500 a few other models I looked up cost.