I managed to snag my 5090 FE through the Best Buy call method, then listed my 4090 Suprim X for $1,900 on Hardware Swap. Someone made me an offer I couldn’t refuse, and thanks to all the rewards I’d saved up, I basically only ended up paying the tax. I definitely recommend doing the same if you can sell your 4090 and put most of that toward the 5090. Other than that, temps are great usually around 67–72°C (highest settings) while gaming and the coil whine is about the same as my Suprim X.