I'm planning to buy my first ps vita.

Hey guys, so im planning to buy my first ps vita and i decided to go for the oled model. its refurbished new from ebay for a decent price of 135 dollars. however i read some bad reviews about the oled screen of vita about burn in and something called mura effect(idek whats that). so i backed up from oled and confused whether to buy an oled 1000/1100 model or lcd 2000 model? please lmk if 2000 model is better than oled one or should i just stick to the oled model? help would be appreciated :)