I would appreciate the option to disable flash ads. Both Chrome and Spotify have been taking up loads of memory (running Windows 7) and I found that by choosing when to enable flash in Chrome (i.e. it's not the default), I saved a lot of memory. Maybe you could do the same thing in Spotify? There are Chrome extensions that wrap flash content in HTML5 when possible, so the user doesn't notice a difference. Maybe the same is possible for Spotify? It might impove user performance.