Earlier quoted context omitted.
He's clearly talking about the software and not the "virtual goods". Zynga's games require all the engineering expertise required from WalMart's 2.99 gallon jars of pickles. Any other company that can deliver pickles in an acceptable way can get right into that market. By contrast, try making a WoW or Call of Duty clone. Huge, huge undertakings. If you don't believe me, actually play some of Zynga's games. 50 percent…
Eh. Zynga is social games at scale. The engineering talent isn't in the games part, it's in the scale part. Getting to that scale isn't any easy feat either. What you've basically just said is that any idiot could clone facebook. Yes, they could. Except they still have everything to do.
Any idiot can clone Facebook, getting users to use Facebook was the hard part.
Scaling is vastly overrated. Yes it requires knowledge, but (a) you don't have to do it from the start (unless you're Blizzard and everything you do is an instant hit) and (b) users don't fucking care about your infrastructure that scales (that's not why they are playing your game).