I recently purchased an Apple TV to replace Netflix. So far I'm very pleased, not quite the selection of netflix but the convenience is awesome. I'm never sure when the urge to watch a movie or tv show will come up and now it does not matter.
The cost is a little pricey, $3.99 for a movie and $1.99 for tv shows. At those prices I could go broke pretty quick so I have to watch how much I use it. Everything should be a dollar cheaper; come on a $1.99 for an off air tv show...
All in all I do enjoy it, and they add more movies every day. If you are looking for a convenient way to watch/listen to movies, tv, pictures and music then this may be the ticket.