I don't doubt that statement is true for you - but it's true only in YOUR exact situation. Real-world variables include country of residence, proximity to honest and competent dealerships of each brand, how hard one is on the bikes, and how much maintenance work an owner does himself. If you live near a great Ducati (or KTM) dealer but near lousy dealers of every other brand, you rarely break parts, and you pay the dealer to change even your oil, then, sure, Ducati (or KTM) could be great. Not everyone lives in that scenario though, far from it. Simplistic, blanket statements are intellectually lazy.