I have been using the Magic Keyboard since last June.So? These are still nice cases for $199/$229, no sale needed. I've used mine extensively for the last 6 months. How much have you used one?
At $199/229, you are saving almost nothing over discounted Apple Magic Keyboard price. While Logitech offers some benefits, such as full side protection, lighter weight, detachable keyboard, and function keys row, it also lacks several things that Apple has.
Notably, Apple's keyboard is much more laptop-like with greater stability (way more usable on your lap), superior raised design, better keyboard and trackpad experience (better key switches, trackpad click, and more even backlighting), and dedicated charging USB-C port.