Basically, Andrzej Sapkowski sold the Witcher video game rights to CDPR for a lump sum of $9,500 because he thought they would fail. He didn't have any faith in the company or the industry and now he's mad that the Witcher games are a financial success and CDPR is now worth about 2 Billion U.S. dollars. Since this isn't a news article I can say this; Andrzej Sapkowski is a cunt.
Witcher 3 GOTY edition is on sale on Origin for $50. It has all of the DLCs, official patches (that actually fix things, not break other things) armor and weapon packs, character overhauls, etc.