Let the hive mind of Engadget get that for you.
"I'm looking for a pair of quality headphones that aren't seemingly made of glass. I'm an avid BMXer which causes me to frequently bash on any type of technology that joins me for my daily riding. I've been through the higher quality headsets in the Skullcandy line as these are supposed to be built for "abuse," which is laughable. I cant wear earbuds or canal buds, as my large ears seem to have a repelling property upon anything that sits in them. Wired or Bluetooth doesn't really matter, but I need something that can hold up to taking a few hits every now and again. I'm trying to keep 'em under $150. Thanks!"
This is so pointless. Movies and music aren't going to play faster for swapping out the HDD, so why bother? SSDs are barely faster than HDDs either for reading / writing so its not like you even benefit from faster copying either.
While I agree that this is not something I would find personally rewarding or financially responsible there are some good reasons to do it.
The real world advantages of SSD are heat and noise. Noise is especially a concern in the Apple TV. While out of the box I'm sure Apple has kept it pretty darn quiet, most drives as they age produce more noise.
As an example the drive noise on my DirecTV HR21 is enough to be heard from our TV watching position easily. Its fan is as well. In the future the use of SSD could allow for a fanless design, or at least a design that requires the fan to run a lot less often. That plus no HD noise (which is really what bugs us) would be great.
SDDs can get pretty hot too. As for noise, I wouldn't even know my PS3 is reading from the HDD unless a little light flashed to tell me. Maybe the Apple TV is different but I doubt it. Sound would be so minute that you wouldn't hear it sitting across the room.
A 3.5" HDD takes about 12-15W. Your DirecTV HR21 (or at least my HR20) takes about 50-60W. Changing the HDD out for solid stage storage will only reduce the heat by perhaps 25%, which doesn't necessarily mean it can go fanless.