Before you spend money into bitcoin many things to be aware of, is not easily put your money and you will get profit. But you have to be aware of, where you save bitcoin to invest and where is the safest place for you to invest. Not a few exchanges choose a path to deceive any cryptocurrency users. I'm sure the people who say bitcoin is scam is someone who does not understand the development of the technology world, but service providers and some way to buy, store and sell bitcoins is the main factor scam.