A few months ago I upgraded a Windows laptop I use in my 3d printer studio from 32gb to 64gb. I let the memory I pulled out sit on the desk, and just got around

A few months ago I upgraded a Windows laptop I use in my 3d printer studio from 32gb to 64gb. I let the memory I pulled out sit on the desk, and just got around to selling it last week. I sold it on eBay for twice what the 64gb kit cost new. In almost 30 years of upgrading all sorts of machines, I can't remember if I've ever performed an upgrade and turned a profit out of it.