I dont think that Bitcoin is instant way to get rich, it is just like the other currencies, need hard work to earn it and not so easy. You can get rich if you hold good amount for some years and if the price rise highly in this period.
Bitcoins are becoming more and more popular and if it continues it will eventually ripen the traditional currency. I think that if someone has already invested, he should risk and multiply his profits, and in the future will probably be a great success. Money does not only need hard work, it also counts the idea!