Really? Do you have like 3 Apps or something?
My iPhone has quite a few Apps on it and uses about 10+ GB of the memory.
Just wondering...how many is quite a few?
I have 172 apps on my iPhone for a grand total of 6GB. And one of those is Navigon which alone takes up 1.68GB. But I doubt anyone needs the entire road map data of the US stored on their stationary Wifi connected Apple TV. So I guess that makes it 171 apps in 4.32GB. But either way I think most people could suffice on the 8GB of RAM. I mean, back in the day some 1st gen iPhone users only had 4GB! (But no apps at the time...)
Most apps are under the 20MB 3G download limit. The exceptions are ones that have a ton of data like the navigation apps or long 3D games like Prince of Persia.