I wonder how many people are going to be lining up for the Apple TV on Friday. 😛
Though in all seriousness, if you want one right away just pre-order.
Every release people waffle, don't know what to do, etc. then they complain that 1 month later they cannot get one because all the scalpers are snatching up all the units and eBay has them up for double the price.
Save yourself the hassle, if you want one, just BUY one now on pre-order and get it over with.
Even if you aren't sure, buy one anyway. You have a few days to change your mind before your order ships, or you can return without a restocking fee.