Certainly that's true, but I think you might be missing my point: it's not an either or - you need a non crappy mobile website for discovery/top of the funnel s

Certainly that's true, but I think you might be missing my point: it's not an either or - you need a non crappy mobile website for discovery/top of the funnel stuff. But from experience, if you don't want to resign yourself to half the conversion rate as more and more visitors come on mobile, you need a native app. If you don't do it, some "mobile first" startup will, and eat your lunch.