Just maybe not every body that has a Xbox 360 can connect to Xbox market or Xbox live. I know I can't! some kinda problem that I can't figure out and maybe I ain't the only one! Don't be rude please!
it is free on the market place.. if anyone has problems through a console, the online site is also an option. That's how i did it, but i don't feel it being free should stop your auction. As you stated, this might be easier for some.