Resale value ?

Good morning together, I just have to let go of my frustration here for a moment!!! The dealer who wanted to sell me a convertible offers me still full 12,000 € for my exactly three year old 3.0 Tid Vector sports combi! That’s in three years only funny 70!!!!! percent loss! At first I thought that he wants to take advantage of me, but unfortunately two other dealers have confirmed the price! I mean – HALLO? – which private man can then buy a Saab in the order of magnitude? Did I find my money ??? So, that had to be said ! Angry greetings Dietmar