I was deciding between the ST and ST3 for some time. The decision was made straight away once i started up both bikes and just listened. Ducati is beats the competition by miles in this department. The rumble coming out the Ducati´s pipes is incomparable to anything else. Especically the Triumphs measily whine which sounds like a scooter. for sheer excitement to the ears I chose the Duke. And wasnt too fussed about spending the extra couple of bucks either.