Should i buy Steam Deck LCD 64GB upgraded to 1TB or the OLED 512GB?

Hello, i mainly play on my PC with almost high-end spec, but sometimes i want to play on my bed thats why i want to buy a steam deck, but i cant decide which one to buy, i have the money for the OLED but it exceeds my budget. Which one should i buy? i want to play Dark Souls 1 2 3, Lies of P, Persona 5, and many more AAA games on my steam library that i havent played.