You won't know about what you lose in sales in terms of discoverability on the App Store - it's easy to see it from your own perspective (mine is the same), but

You won't know about what you lose in sales in terms of discoverability on the App Store - it's easy to see it from your own perspective (mine is the same), but the iPad attracts such a wide demographic that you may very well shut out some newbies from using and buying your service. HTML5 don't always play nice with app-switching either, but maybe I've just not used enough HTML5 "apps".