All you really want is to get out of the store and start using that shiny new phone to play games, check e-mails, share photos and take advantage of the plethora of fun and functional apps on the market.
Unlike the data we use to surf the Internet and check our e-mails, which can be slowed down and not affect the results, streaming video services need to be able to stream at a certain data rate and while some dropped packets can be tolerated, at some point the movie becomes jerky on the screen, and sometimes entire sections drop out.