Ignoring all of BTC's significant issues for a moment, there are a lot of groups in Bitcoin. One of those is the fairly average, tech-savvy want-to-be-investor, who has a little bit (but not a lot) of disposable income and wants to do something with it that's better than the 2% annual yield of ... pretty much everything else.
With BTC, you could buy in at almost any amount, get out whenever you wanted, and transfer fees were pretty low. Those aren't common traits for most other investment vehicles.
It's kind of a side effect of so much capital being locked up in a smaller and smaller percentage of the population. The folks closer to the bottom are clawing at anything that might improve their situation a little, even if it comes with a lot of risk.
With BTC, you could buy in at almost any amount, get out whenever you wanted, and transfer fees were pretty low. Those aren't common traits for most other investment vehicles.
It's kind of a side effect of so much capital being locked up in a smaller and smaller percentage of the population. The folks closer to the bottom are clawing at anything that might improve their situation a little, even if it comes with a lot of risk.