There are no advantages, unless you're a hacker.
1--------------It Can Be Used By Police To Find Criminals........ 2--------------- Criminals computer has all information the police wants.....
Actually, there is really no advantages from getting a virus, though there may be some from sending one.
If it's for collage or something like that, it can be very beneficial if you don't have the time to go out to train and learn. It can also sometimes be cheaper.
You don't need a computer to read it.