At the end of October last year, bitcoins were going for $10 on mtgox. Feb 17th at around midnight, they were $28. Now, they're close to $65? If you look at the graph on mtgox, bitcoins spiked from Mar 4th at 6am ($34) to Mar 6th between 6pm and midnight ($47.80) .... from Mar 18th at 6pm ($47.60) to Mar 19th between 2 and 3pm ($62) .... and from Mar 19th between 4 and 5pm ($53) to today between 3 and 4pm ($65), with the major spikes being Mar 19th, 1 to 3pm ($54-$62) and today, 2 to 4pm ($59-$65).

With that being said, my prediction is that bitcoins will continue to increase, but at an exponential rate. There's a lot of math involved  but basically, the slope has gone from ($18/112) days to ($13.80/60-66) hours to ($14.40/20-21) hours to ($12/22-24) hours, sometimes ($6-7/2) hours (major spikes).

If you decide to invest now, the worst that could happen is (and this is with every investment, figuratively), your bitcoins will lose value. Imo, they wouldn't lose much value, if they were going to. The lowest values seem to come up between 4 to 6, am and pm, frequently. So pretty much just keep your eye out.... I would invest when you see the value between $50 and $60. For example, the low today was $57.70 at 6am. You will get the most out of them if you look for that drop that I mentioned, then continue to observe the value, and if they reach a value higher than what you bought them for, but then starts to decrease, there will be a big choice you have to make. Who knows if the price will drop as significantly as before, in the future. The two price drops decreased, from a difference of $8, to one of $6. The next one may not happen, or it could happen, and either be $4, or $10....   

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