As far as I can tell, Spotify pretends to offer something (to listeners) for nothing, or very little (Can you still get free accounts? Offering free accounts and then withdrawing the option once the user base has acclimatised is a classic move. I believe that drug dealers have been known to use a similar model.) They pay the artists minimally. Yes, I know a lot of similar services operate a similar business model, but Spotify, I believe, offer less than the others. I have an account that I stopped using; I tried to share a playlist and it seemed to require me to make music held on my personal computer available via its network. Call me old fashioned, but that rang a lot of alarm bells. When you posted your playlist, I followed the link, thinking that I could use my old account, and Spotify asked me to jump through more hoops than I was comfortable with. I just tried again, and it hung on me. I'm sure that Spotify is the future, it will just have to be the future without me.
Yes I understand what your saying. I was playing the £10 a month and now gone back to free service for a while. I will go back to the monthly as I enjoyed the add free and also being able to play on my mobile. I still enjoy as a tool to discover but of late I've been playing more vinyl than digital.