|reply to TSWYO |
Bandwidth and data are not one and the same. Higher bit/s connections (e.g., 10mbit/s vs. 100mbit/s) require more infrastructure on the backend than lower bit/s connections. The actual bytes sent across such a connection is less important (though it matters somewhat with a shared last mile) than the promised data rate.
There's also a difference between a co-location center and residential last-mile connections. The former provides economy of scale and requires scant infrastructure investment. The latter requires infrastructure from the ISP all the way to your doorstep.