We sold two about four years ago when it hit $18K. We bought at $6K. If we had held, we could now realize about $100K instead of the $24K back then.
Not saying one cannot make money from it.
My dad bought a 1958 Rambler in 1974 for one hundred dollars for Mom to used to carry and ferry us kids to sports and buy groceries . Four years later they sold it for two hundred dollars.
Bernie Madoff had customers who made money but look at them now.
By the end if the year they might be worth 400k together.