What is really antiquated about them? Because they are air-cooled? Because they are push rod actuated?
you keep saying HD is inferior. Inferior to what? Seems to me if it were such a bad bike there sure wouldn't be much in sales, and please don't give me the marketing Kool-Aid. Seems the Metric bikes can't get enough of a HD so they literally copied a V-twin design to appease the masses. Hasn't really worked out that well for them in the big picture now has it?
I see most small prop-driven airplanes are air cooled and pushrod-activated. this is 2013, seems they should have done away with that long ago.
I think instead of bashing, or as you say it, "pointing out differences", maybe you should see just what the HD bikes are used for.
They are not "rockets", so no high revving 4 cyl engine bouncing of the redline, with the rider wearing the latest full body armor suit with the bike makers name emblazoned on its front.
They are not "Brit bikes" with their distinct sound and look, and stereotypical "lone rider" person.
They are not Gold Wings, known for their 50 miles of rocket-ship plastic and uber quiet and smooth ride, usually ridden by elderly gentlemen and their wives (hence the name "old wing")
They are not Dirt bikes with the suited muddy rider with his transformers-looking gas mask helmet..
They are purpose built for a specific type rider who likes the torque and sound of its power plant. Much like some of us like the sound of an old big block V-8. That "antiquated" air cooled engine can go as many miles as a water-cooled metric. It can be tinkered with and built up to whatever the driver wants. Can yo udo that with that ultra modern metric? I can garentee you that an old antiquated HD engine will out pull and our ride a modern metric, its been proven many times over in stock form.If it was junk, these riders would be first in line to get one of those ultra modern Metric cruisers - Sorry, just isn't happening. So when you "point out differences" please make sure you look at all the picture instead of just a slice. The fact you don't like them is one thing,and that is, of course your deal. But don't bash the people or the bikes if they continue to be the biggest bike buying group, and with all that $$, they obviously feel by experience that the quality is quite there.