It appears that The Legend of Zelda: Breath of the Wild for the Nintendo Switch is selling out at a few popular online retailers. Both Amazon and GameStop show the game as being out of stock. GameStop is still taking pre-orders on the digital version for the Switch, but not the physical game. Both retailers still have copies of the Wii U version to reserve.
We called a local GameStop store to see if they were still reserving the game for the Switch and they confirmed they are still able to. They were surprised the online site was sold out. This could be a precursor to the stores stopping reservations ahead of launch as well.
Best Buy is still reserving the Switch version of Zelda. If you’ve been on the fence, you might want to secure that launch day pre-order while you still can.