Such kind of reply just verified my oppinion. But I take your advice to logout.

well, let me do some more reading...
but one thing I still insist is, this is an unfair game, for those who involved late, and too fair for those participate early. So it's not likely to attract more people in the future.
I know someone already have answers for this too, but obviously they are not convicing.

$20 is not cheap enough (for me), I believe 64GB will be too small for soon, and sooner in the future.  The other problem is it takes several days to download it (~10G). If more people use bitcoin, maybe we need millions of years to download it. 

I think bitcoin makes on sense at all.
A decentralized money means every client holds a central bank -- it's feasible only for a very small scale. The block chain is 10G today. It can grow up to 100...0GB if it wants to get the same position as usd or euro or cny -- obviously it's impossible.
It's no better than an idiot comapring to current finacial system. It does not support transaction, rollback, tracing, etc.
When more people get involved, it will be a nightmare.
When SHA is hacked, everything is gone.
The rule for wealth is so ridiculous -- btc mining likes lottery. Is this better than rules in today's real world? No, it's just ridiculous.
It's just a new kind of Ponzi scheme. Everyone hope his btc will become more and more expensive so he can get rich without doing anything. I do not think they will succeed.

Am I wrong?

He is asking how to obtain the privilege to create new post in forums other than this one. I want to know this too.