Both power-leveling and buying accounts share similarities. Both allow you to skip the “boring” parts of the game. Most purchasers of these services are usually people who have their own characters and don’t want to spend the time. So what should you do?
First, let’s start with the basics. Who power levels your character? Power leveling companies employ people from third world countries to play games 24/7. Companies that buy and re-sell accounts typically buy from regular gamers who no longer wish to play their account. As a result usally power-leveling is cheaper, although buying accounts isn’t too much more expensive as gamers are happy to just make a buck out of a game that they had fun with.
The problem now is that because of Blizzard (and other MMO) companies are taking a very aggressive stance against power-leveling and buying accounts, risk factor must be taken into the consideration. Because there is only one way to tell who is playing an account - by IP, this causes powerleveling to be easily detected and as a result makes it VERY risky.
On the otherhand, buying accounts also poses a risk. The seller can recall his account after you’ve paid - which is just as bad as getting banned. However the risk of being caught by IP is slim because switches in the US (even state to state) are common and happen regularly with normal players.
Now that powerleveling is out of the question because of IP tracking, what about buying accounts? In order to protect yourself, you MUST be positive you can change the email to your own. This includes making sure the seller has access to the email on the game account and can change it to yours. That way, if something happens, all notifications will go to your email address.
If you take the neccessary precautions, you can still buy accounts. But be aware of the risks!