What makes the average Nintendo game hold its value so well compared to other console games

[NintendoPie]

ChaosReich said:

But there are a lot of quality games on PS4 that dont have near the same price point years later that Nintendo's do. Since you are saying the market decides what quality is, which i dont disagree, then how do you explain games that sold millions more the some Nintendo games that are priced $10-$20 dollars cheaper years later. 

You can chalk that up to stupid business decisions then. If they truly are quality titles then they should be able to sell at a quality price for a good length of time.