Anytime car salesmen bother me, I just show them my DeathMatch trophies and they leave me alone. How are you on the whole Dell computers powered by Panda Blood issue? MMmmm, panda blood.
To be serious, iTunes is successful because of its ease of use on both of the major platforms. Even if the iPod had not been the runaway success that it has been, no other Plays4Sure store or opposing DAP has the ease of use. The Zune has some serious issues to work out before it can be considered as an alternative. The whole social model that they are striving for works well for MySpace or YouTube because it's cross platform (or cross-browser). How well will that work with hardware? Remains to be seen I guess.
iTunes, the Middleman People Want