Never again KTM

Actually I was satisfied with the Super Duke GT, that the dealers lure Rabat on new vehicles with 4000 euros, and thus destroy the used market, only one conclusion allows: Never buy a KTM only for 2-3 years. It always attract new models and technologies and the temptation is great to switch from time to time to the moped, but with these methods it is impossible to do with KTM. So either change KTM forever or only with other brands sometimes. With my BM W K1300s was and is the price stable. How do you see this?