That dude should have said, "Listen, there is no way I can explain to you the difference in these two laptops. You don't possess the knowledge or interest in learning various technical terms like RAM and CPU. That's probably the reason you're in this store in the first place. So I'm just going to go ahead and give you the more expensive one for wasting my time and being lazy."
Then the newegg logo flashes on the screen with the slogon "Not for tards".