Somehow I can neither "like" nor "me too" this issue, so I'm writing a comment.
As a premium user of Spotify, I'd very much appreciate a better way to install and update the Spotify desktop client on my system. Having an official package would make accessing your service much easier for me, and thousands* of other people.
* I have no data to back this up, but in my experience, actual usage is usually some orders of magnitude larger than the number of people who go to the additional trouble of upvoting something. Furthermore, if clicking a "Like" button is already a hurdle, making it hard for people to install your software must be deterring quite a number of your potential users.
Edit: Seems I wasn't registered all the way. I can now click "Like" buttons here, and I will. :)