Absolutely.  Anyone who thinks otherwise is spending too much time looking in the rear-view mirror.  There may be a lot of people who are quite stressed right now because of what MIGHT happen when Mt Gox opens back up in about 90 minutes, because they 'bought more coins" at $200+ and panic-sell because other exchanges are at $75 - $86 right now.

You can't could have.  I could wish I would have bought in more when I first found out about Bitcoin in Jan 2012, but I can't could have either.  Blaming someone else for your perceived lost opportunity because they were (and probably always will) suggest caution is an unwillingness to take responsibility for your own actions, or lack thereof.