That page contains all the pricing details. You are charged per hour. So you can create and delete servers while only being charged for what you use. The monthly price is simply a cap. For instance, a 512mb server costs $ 0.007/hr. So in a month with 31 days, the fee would normally be around $5.20, but we cap that at $5 per month. If only have the server for a few days or hours, you're changed the hourly rate.