500 Euro?!
Luxury!
When I lived in The Netherlands I would buy my bicycles second hand (well, more likely 3rd or 4th hand) from a bicycle shop at the train station for less than €100.
It would've been cheaper to buy from the fishy looking guy near the Red Light District but those source their bicycles in "special" ways (and I don't mean "drag it up from the canal").
Granted, this was maybe 2 decades ago, but still, €500 sounds like treating oneself with an extra nice brand new bicycle.
Curiously I kept doing the same thing - buying my bicycles second hand from the bicycle shop - in both London and Berlin.