Investors interviewed after the exchange collapsed faulted the Tokyo exchange and Mt. Gox's French CEO Mark Karpeles, but they remained committed to the bitcoin idea.
Roger Ver, a big investor in Mt. Gox, said he did not know if he would ever get any of his lost bitcoin back.
(Read more: Mt.Gox files for bankruptcy protection)
"But the important thing to realize is that Mt. Gox is just one company using bitcoin. The bitcoin technology itself is still absolutely amazing," he said.
"Even if one email service provider is having a problem that doesn't mean people are going to stop using email. It's the same with bitcoin."
Ver spoke of "all of the positive ways in which bitcoin is going to change the world ... if anything, it is kind of for the better of bitcoin that the irresponsible players are going out of business."
(Read more: Bitcoin's back to the wall as it fights to survive)
Shishido said he does not expect to get his virtual money back, but that the rest of his bitcoin investments had soared 10-fold in value.
Keiichi Hida, a bitcoin investor and member of the Japan Digital Money Association, lost 100,000 yen ($980) worth of bitcoins, which he got involved with as a form of "study". But he was unfazed.
"We should make it a national project to have bitcoin used nationwide at the time of the 2020 Tokyo Olympics," he said. "I think then everyone would come to Tokyo in an instant."
Mt. Gox CEO Karpeles, even after bowing to apologise for the exchange's bankruptcy, later said the currency will endure. "The bitcoin industry is continuing and the most important thing now is to limit the impact of (Mt Gox's collapse) on that."