When Xbox Series S launched alongside Series X and PS5, it presented a compelling argument: Play all of the same games as elsewhere, albeit with lesser performance and visuals, for way cheaper. $300 felt surprisingly reasonable, giving you a way to save $100 compared to the cheapest PS5 and $200 compared to the more premium PS5 and Series X models. With the Series S turning six later this year, you’d expect it–like every other console–to get cheaper over time, as…