Price drop M850i – Used cars

Hello forum, I am interested in the M850i convertible and have been watching the used car market for some time. I notice how strong the prices fall. On average about 23,000 EUR per month. For some vehicles even 5K 2-3 vehicles that last month were between 67-68K, you can buy today for 62K. Were the vehicles so much overrated? Or is it due to the current economic situation. Should one wait or is something lazy about the series that the I’m happy about your news.