so how long till the crash comes? its just as irrational as any other market.
So in other words, it's just as likely to crash as the USD? That doesn't sound so bad.
Actually I think bitcoins have a couple advantages over other markets.
Compared to gold/silver/platinum etc, mining of bitcoins is a known quantity. A sudden influx of newly discovered precious metals could mess up the market unpredictably, but that is much less likely to occur with bitcoins. The only equivalent would be someone finding an old "lost" wallet with a large quantity of BTC in it, and even then the total number of coins is still completely known.
Compared to any corporation, BTC is far more consistent. You know what it is, what it is used for, and what it can do. There isn't any real possibility of CEOs mismanaging things and bringing down value.
Compared to the fiat currency of any nation, bitcoin is out of government control. QE is just a funny name for "printing more money", and each time it occurs it chips away a little bit of value from our dollars. Bitcoins don't have to worry about that, beyond the the well known results of mining.
Now, I am under no illusions, I still realize that even with these advantages the bitcoin market could indeed turn south. But it's a risk I'm willing to take. I think over time bitcoins most likely will increase in value tremendously, it's just a question of whether it takes 5 years, 50 years, 500 years, or 5 months. Or maybe some terrible flaw or problem will be discovered and they will lose all value completely, it's a possibility. I just don't think it's very likely, and I'm willing to bet against it.
One other thing I want to point out, is a terrible scenario already took place, when mtgox was hacked and value plummeted. Bitcoins have been proven to be resilient enough to recover, and with this knowledge I am not sure a similar crash will ever occur again.
Think about it, you wake up tomorrow and value has dropped to $5 per coin for whatever reason, what would you do? I'd buy a ton of coins, because I know they came back from the lows before and I think they will do it again. I think a lot of other bitcoin investors think the way I do, so I think the next crash will be short-lived as speculators buy up as much cheap coin as they can.
edit: all that said, I am hedging my bets somewhat, sold about 1/6 of my coins a week ago.