I have seen countless posts here so I know it is better. The OLED screen is amazing and the battery life is at least %40 better. Also it has better performance and smoother controls + other improvements.
I am also thinking about selling my SD and getting an OLED one but it is not on sale in my country and all invidividual sellers have limited stocks and the demand is high. So I decided to wait until more OLED SD come to my country before I try to buy one. While waiting I play with my SD whenever I have time.
I read many times that people who switched to OLED feels like the older version feels clunky. I do own a PC for gaming too so it is not like I don't know how much better the gaming can get. I am currently not running some demanding AAA games on my deck and it looks great and plays very smoothly. While playing fast paced action games, it feels fast and responsive. When playing not demanding games, the battery is also fine.
So I played with it more this weekend and I just didn't feel like I needed an upgrade. Don't get me wrong- I might still buy an OLED to feel better about my life. But I am just saying I don't need it. The SD gaming is already great and fun enough. Not OLED version or not even a super gaming PC with giant OLED screen with the best controller money can buy was not needed while I simply enjoyed playing with my good old Deck.