It's too late to get into Bitcoin. You're supposed to get into investments when they're venture or in the beginning stage. Bitcoin is already bigger than Western Union or any money transmittor I know about.
You could had bought Amazon stock at $10 with $500 and probably make crazy money (since they've had stock splitting)
Bitcoin is still in it's infancy stages - no where near "big". When you can get in before Wall Street you're getting in extremely early.