OLED Monitor or LG TV

Im looking to upgrade my gaming PC monitor. Currently I have a 27 inch 1440p 144hz LED monitor. I also have a LG C1 65 inch tv and love OLED.

Trying to choose between

1. MSI MAG271QPX, a 27inch 1440p 240hz OLED Monitor for $650 2. an OPEN box LG C3 42, a inch 4k 120hz OLED at a Best Buy near me for $675.

What would you choose?