Yes, it is a lot of money but honestly, if you're planning on losing 10-15 pounds that will most likely take you a month. Only you can decide if the money is worth it. It will cost you about $360.00. I don't know, is it worth the money for 10 lbs? You will have to make sure to be strict when you go off IP as you will not have had enough time to develop good habits and maybe the pancreas needs more time. I think it's worth it but I'm dealing with a lot more weight to lose.
Best of luck whatever you decide.