Bike depreciation depends on a few things.

Sometimes the new model completely obsoletes the old one. Summore got CKD. Then the old one immediately depreciate like hell.

Case in point, the Z800. The second Z900 came out in CKD, second hand z800 prices dropped like a stone. Now it's super cheap.

In the case of Ducati, just before the timing belt change... value drops like hell. LOL. So if you find a cheap-ish Ducati, this is the first thing to ask.

If depreciation bothers you, buy a 3-5 year old big bike from a weekend hero biker who racks up very little mileage. By the time you sell it on years later, you will have lost very little.

Tip: Many guys buy big bikes on impulse, then 2 years later cannot pay hutang and are forced to sell. Nice bargains to be had here. But beware... some of these idiots lari hutang and sell the bike secara haramjadah (JT), some try sell the bike secara 'sambung bayar'. Steer clear, unless you also the haramjadah type willing to gamble.