I told you before about the Prepara Herb Savor. I bought one several months ago. Based on that experience, I found that you may need more than one multi-herb format if you are like to keep many herbs at the time.
For one thing, it is best to keep your basil at room temperature. But most herbs stay fresher when you keep them inside the fridge. A pack of 3 Herb Savor Pods will enable you to store a larger quantities. If you need more than one, go with the pack since its price is set to give you 3 pods for the price of 2.