As long as you have the funds to spare. Just don't invest anything you can't afford to loose. That's what I do. I agree, it's very fascinating to watch a digit

As long as you have the funds to spare. Just don't invest anything you can't afford to loose. That's what I do. I agree, it's very fascinating to watch a digital currency come into use. I've bought two cell phones, and a video card using bitcoins. And I've hired a developer for a day with bitcoins. So I see some value besides just investing in them, which also was a bit more incentive.