so it sounds like hardware 4 is going to be a dramatic upgrade to the capabilities for FSD, autopilot, safety features, etc. I just got my model x refresh a few months ago with 3K miles on it. would it be crazy/stupid to trade my model x in for a new one that has hardware 4? I held out buying a tesla for years until the refresh X came out and finally thought the time was perfect, and now I don't want to miss out on this major hardware upgrade!