Bitcoin is just money. It's not here to make us rich or get us out of paying taxes. It's not destined to go to the moon, but it might. It's not going to crash to zero, but this is a social experiment and no one knows the future, so it might.
Bitcoin may be just money but because of its deflationary nature people can make more money from it due to supply and demand. I actually think its likely to be a very worthwhile investment but people just need patience.