Refurbished golf balls are significantly cheaper than their brand new counterparts. They can wear down quicker than new balls after a long period of time.
Performance-wise, according to Rick Shiels Golf, they are extremely similar.
Durability wise, the new golf balls held up better and had fewer scuffs than the refurbished versions. After 10 bunker shots were hit with each ball, the refurbished showed more signs of wear and damage.
In terms of distance, the refurbished balls actually performed slightly better for Rick Shiels than the standard Pro V1s brand new out of the box.
The biggest difference between the two is the clanky sound when hitting the refurbished ball due to a harder outer shell.