Cash out some of my crypto portfolio to buy another gpu?

My portfolio is small. I have $300 stakes and cant take out, but that leaves another $450 I can sell. My rvn is not included (about $300 now as well, from mining). I want another gpu even tho I just bought rig parts and 2 other gpus within the last couple weeks…. what should I do? I've only been looking for the best deals possible and I'm leaning towards another 1080ti lol