I cant make up my mind, iPod touch or Zune HD

I'm in the market for a new MP3 player, and I cant make up my mind on which to get, the 8GB iPod touch or the 16GB Zune HD. As far as players go I kinda like the Zune better since it has a built in HD radio(but no big deal, and is larger for the same price, but again no big deal).
The thing is, if I get the Zune I can get Zune pass which is only 15USD a month for unlimited downloadsBut, in order to keep playing those songs on the Zune, I have to keep a subscription to Zunepass every month while I have to straight up buy songs from iTunes(which is getting kinda expensive). Overall its 180USD a year for Zune pass for the same price I get only ~180songs on itune
The thing is, if I get the Zune I can get Zune pass which is only 15USD a month for unlimited downloadsBut, in order to keep playing those songs on the Zune, I have to keep a subscription to Zunepass every month while I have to straight up buy songs from iTunes(which is getting kinda expensive). Overall its 180USD a year for Zune pass for the same price I get only ~180songs on itune