I think the refurbished ones are under appreciated. They have manual calibration by a human, and therefore can exceed the standard factory model:

All refurbished units meet or even exceed the performance standards of new retail units.

The only downside is, it can (but don’t have to) have visible cosmetic blemishes. But in return you get same experience and rights of a factory model with lower cost, which is a huge deal in today’s day and age. This is the reason why I consider my next Steam Deck 2 (OLED) as a refurbished one. I can wait. :-)