There was a time when I thought bitcoin would fail. Then a friend pointed out to me how many people have invested so much money in the ecosystem. They won't let it fail.
There's a whole industry out there. There a miners, there are mining device manufacturers, chip and board creators, there are exchanges, wallet creators, physical coin makers, loan services, advisors, software developers, pools, and this is only touching the tip of the iceberg.
Put it this way - gold will fail before bitcoin. Fiat will long fail before bitcoin.
I totally agree with you. That is exactly how I think too.
I think bitcoin will be BIG. Everyone will use it.
And I must add, it's not just money that has been invested in the ecosystem. Look at the major universities around the world, how students are excited about it. The MIT free bitcoin event is just one of them. All these guys are starting new businesses in the bitcoin ecosystem. Someone (sorry I don't remember where I read that) evaluated that about 20 000 persons were working on bitcoins/altcoins projects, and they are probably a good portion of the brightest minds our societies will produce in the next 5 years.
With so much brainpower invested, how could it fail?