I was talking about the PS4 Slim not the Switch Lite.Nintendo isn't Sony. Console prices are usually coordinated with the console manufacturer and tend to be uniform across stores. You'd have to believe that Nintendo would allow this or even want this type of pricing. We're talking about the company who doesn't lower their prices on their first party games. I'm not saying you won't see a discount or bundle on a Switch, but if you do, I highly doubt it's going to be 33% off a normal Switch and 25% off the Lite.
Regarding your overall point, I agree. However, Nintendo can be aggressive when they see a point. They said that they wanted to grow their userbase as fast as possible before next-gen. It might fit into this strategy.