On a more serious note 
I recently bumped from 32GB to 64GB and found that, for running 4K ultra at least, it doesn’t make a huge difference (eg in fps) but it does feel a tad smoother.
The working set for the sim process is usually well under 32GB but this means I have an extra 32GB of disk cache – which should improve the performance of anything that’s loaded and re-loaded from locally downloaded files or the rolling cache as you fly around and encounter different aircraft, locations etc.
If it’s not a cost burden and your system can take an upgrade, consider it.