Yup, this is exactly right. The way I usually look at is this - if I put 100 customers on a link that had unlimited bandwidth and then watch the max usage on th

Yup, this is exactly right. The way I usually look at is this - if I put 100 customers on a link that had unlimited bandwidth and then watch the max usage on that link, how high will it spike and for how much time? The current situation is that 100 customers won't spike to more than around 400-500 megs for more than a few minutes a day. But that number goes down the more customers you aggregate, to the point that 600 or 700 customers won't spike to more than 1gpbs for more than a few minutes a day. So if you buy a 1gbps link to serve them, you're only slowing things down for a few minutes a day.