3 hours ago, Kalen said:
If an item doesn't last forever then you have to decide what is more important: Having an eventual replacement for your current item or the coins you would get by selling it. That is not as simple a choice.
You assume that an equivalent replacement can always be found. I have one purple Auto Shotgun and one purple Auger and I haven't found another one yet because they are so rare.
I can craft a blue variant of both at any time but there is a mod slot missing. So if I know that a certain item is very rare and I won't get it again in this game with high probability then it's pointless to use it because I can't keep it anyway. It's just a collector's item in a showcase. Nice to look at but useless.