and when having a mining rig it's those all an assurance and anytime you want to sell them you can do it whether mining situations it's current profitable or not, that all different when your invest in crypto, yes, you become boss when a coin going to the moon but also your money become smoke when a coin it's a scam or price of coin drowning.
This is true but the upfront cost is a lot, and you will prob loose around 50% of the cost of the GPU once you are ready to sell them ( not profitable anymore )
yes, I have some strategy for avoiding loss such as I sold a half coin for an electricity paying and another half hold a few coins until the price of the coin a bit increasing. or I mining a new coin such as CLO. so far this strategy a good enough (for me, not for all).