HalfMania is a website offering normal products in half price. The rest is paid by sponsors. For example if you want to apply for a Black Zune you will pay $124.99 and you'll have to sign up with 3 of their sponsors. In level 1 there are 16 available sponsors. Level 2 has 7 sponsors and Level 3 has only 4 sponsors.

You should know Zune's suggested price is $249.99 but currently in the market costs about $220-230 and you can find it on some retailers for as low as $199 . If you don't care if this is a returned, opened product, from another customer the price can go even lower to $179 .

So before going for Half Price, check if you are interested in the offered sponsors, because at the end it may cost you more than normal price!

Zune products page