I've never used the road, but rather I fear it was central to the high value of Bitcoins. I would love to be wrong but I can see my investment dropping and I don't have the guts to sell back into fiat.
I guess it depends on whether you believe cryptographic currencies have significant use cases outside of criminal enterprise.
If, on the other hand, you believe that the greatest value of bitcoins comes from their use by criminals, doesn't that make your investment in them a touch morally questionable?