I made a good sized deposit right off the bat and it's paid off great. I did it and let coinbase do the work. Since then I've syphoned a little money from it here and there to deposit into bittrex and invest in other markets.
Tread lightly, a lot of scam companies/currencies out there and it's pretty unregulated. A rule of thumb I've used thus far is never ever use the money you put in as a motive of profit. This is all still in its infancy but I really do think it's the future. Peg your bitcoin value to the dollar, I guess. But you'd be a moron to use it to buy anything materialistic at this point.
Google the first ever bitcoin purchase.
Post the results here.