(note: I've met Eran a few times, he is very smart and I respect his opinion)

Note aside: this is one of those "it really depends" kind of situations. For many cases native apps are always going to be cheaper to build. For others the web is just much better. It seems like the problem Eran is describing is more of a labor shortage. It's really, really difficult to hire good web developers. I have no idea why this is.