Probably bitcoin is it, the price is literaly less than the middle best price ever.
I wholeheartedly disagree with this.
Bitcoin has no real value other than being the prime store of wealth in the cryptospace. It is currently at around a 50-60% decline from the all time high whereas many altcoins (that have far-reaching use cases) are up to 90% off and have much more room to grow.
Not hating on Bitcoin btw but there are much, much better buys around at the moment.