> Frankly there are only two real benefits to 30Mbps+ speeds
Indeed, the bandwidth of the final stretch is more or less irrelevant when your download times depend on the far end being willing to punt out its data at 30Mbps and for all the infrastructure in between to do the same for your connection without any 'packet loss issues' that absolurely aren''t throttling or rate-limiting policies in any way at all whatsoever.
My Londonburbian ADSL is barely over 10Mbps but the main 'speed problem' is the slowness of the far ends to respond at all, combined with website creators presuming that everybody is already on a 50Mbps+ connection and therefore don't mind a 10-gig bitmap and HD vido for a page icon instead of a postage stamp jpeg.