One of my biggest fears, as someone who enjoys such wide access to music, is that the number of services will increase to such a large a number and result in such catalog segmentation that I will have to be a member of numerous streaming services to actually listen to what I want.

Maybe this is the what is needed, though? Each major has their own service? Each independent label or groups thereof then do the same? One interesting service I have seen lately is http://drip.fm/ I am really curious as to the success of it so far.