If you want to get physical versions of Ori and the Blind Forest: Definitive Edition and Ori and the Will of the Wisps, the only way to do so right now is in a Collector's Edition bundle that's priced at $150. If that's a bit too pricey for you, or you just want one of those two games, you'll be in luck later this year.
The official Ori Twitter account confirmed that standard physical releases for both Ori and the Blind Forest: Definitive Edition and Ori and the Will of the Wisps are on the way. They'll be out later this year, but no specific timing was given. We also don't know which retailers will be stocking these titles, so we'll just have to hang tight.