Got interested listening to a conversation with Gavin Andresen on a tech-podcast two weeks ago (http://omegataupodcast.net/2011/03/59-bitcoin-a-digital-decentralized-currency/
). Bought a little and had been seduced by the rally happening just afterwards. Bought some more and now waiting how the thing is evolving.
Seems it is not the rapid money thing but a long time interesting experiment. Do not plan to buy or sell but to hold.