I would imagine contention ratios would also factor into pricing. At least in Australia you might have a 8:1 ratio of actual bandwidth available for a consumer

I would imagine contention ratios would also factor into pricing. At least in Australia you might have a 8:1 ratio of actual bandwidth available for a consumer plan, and 3:1 for a business plan. I'd imagine that you pretty much get all the bandwidth you pay for in a data centre. I've certainly saturated 100mbps connections on servers in the past, 24x7. But perhaps people more knowledgeable than me could comment on this?