[dmix]

200k is a pretty good sample size is it not? Even with multiple providers.

Most election/political polls use far less data and very big decisions get made because of them.

[hueving]

Sample size is only a tiny part of the relevance of a sample. You can take a thousand gallons of water to test water quality, but if all of it is from the same faucet the sample isn't representative.

[dmix]

I don't see how that applies here though. How much variation is there among broadband users that matters?