You mean the anti-glare one on the most expensive version? I would say it’s a nice addition but nothing revolutionary. It really makes it nicer to play in sunlight, but it is making colors a little bit darker. I don’t feel much of a difference with colors, however. But I would say just for the screen, the price hike is not worth it. And remember - it’s not something that a screen protector can’t do, I think you can buy one with the anti-glare protection.
You'll never take me alive (startrek.website)
Valve May Start Selling Refurbished Steam Decks Soon - Steam Deck HQ (steamdeckhq.com)
TL;DR: Steam briefly showed options to buy refurbished Steam Decks for the following prices:...