I heard that bitcoins were valued at something like $150 lately, which sounds cheap, and I feel like buying a few as an investment. However, I've heard that there's been MANY instances where big bitcoin banks have been robbed of countless millions, so I wonder how likely it is that bitcoins will become worthless? Two more concerns - Will owning bitcoins put me on some unsavory list, and... should I consider some other virtual money instead as an investment?