I tell you folks, if you are brewing one of the hoppy "American" styles (e.g., APA or AIPA), you need to dry hop and not be shy about it. I've tried many, many, many homebrews in those styles, mostly in judging, and the beers that were not dry hopped or done so very lightly just did not make it. They might have been nicely balanced beers and quite drinkable, but you're just left wondering where the hops went. On the other hand, the well dry hopped ones easily stood out with that good hop "snap" that the others lacked.
For the very same reason, I don't know any commercial example of those styles that doesn't dry hop.
TL