I don't get it.
You're complaining at yourself for not knowing the future?
Bitcoin might aswell have had its peak at $5 and maybe it would've never risen above that. You could potentially have lost thousands of $'s.
Mining dying? No, mining can't really die, it can just get harder. Someone HAS to find the BTC's before they can be traded.
I like your thinking.
I too could have spent $10k on bitcoins - which could have been worthless tomorrow - instead I spent it on mining equipment - which I can sell tomorrow for at least 75% of what I paid (since I bought it all used in the first place).
Had I have spent $10k on bitcoins - I would be nuts... now I am safe and semi rich.