You're right! I can see the thread titles now, "iSock or Power Sock". People will say they have an iPod that they listen to while doing e-mail, light photoshop, and maybe some final cut express which one should I get? Pro or iSock. Then the responses will come in something like this...
"For your needs an iSock would be enough"
"If you can afford the Power Sock you might as well get it because you will never know when you are going to need to use the whole Adobe Suite at once while you are listening to your iPod"
"I have the iSock and I love it. The all in one design is perfect for most people"
"Personally, I wouldn't purchase either of them until they come standard with at lest 512 mb of ram!"
You can see the way that will go can't you?