Even if you can't use it constantly having a high top speed is useful. Most people aren't downloading large files most of the time. But it is very useful to be

Even if you can't use it constantly having a high top speed is useful. Most people aren't downloading large files most of the time. But it is very useful to be able to have those bits fly when do you do want to transfer something. While 1.2TB seems quite low for 2000Mbps it is still better than having 200Mpbs just so that you have 15h of full-speed capacity.