You haven't seen anything yet: http://themisescircle.org/blog/2014/01/28/i-love-bitcoins-volatility/ And this case it will not collapse...so I would not call it a bubble.
Bitcoin has increased so much because of where it started. It's an Idea. If the internet could be measured in the same way. It would perhaps be 1,000,000,000 % increase in value.
Using the free data from http://stooq.com/q/d/?s=xauusd&c=0 scroll to bottom of page to download as a csv file. Gold 71-74: 520% Gold 77- 80: 661% Gold 01-12: 706% Gold 1970-31/1/1980: 2572%
I suppose you have to add Eduardo Saverins $15,000 investment for 30% of facebook into that tulip mania. $15k invested in Facebook 10 years ago and that should be worth about $40 billion or so so what is that? 300,000,000% return? Definitely a bubble. Gonna pop any day now.
Lets not forget Ronald Wayne who sold stock in Apple for $800 to Steve Jobs. That $800 was 10% of Apple back then. Now that 10% is worth $44 billion so thats what...half a billion percent return on investment? Apple is definitely a bubble.
Yes, we get your point, but just in case, if you don't know the difference between a bubble and a lucky (and early) investment, one has real value behind it, the other doesn't...