The cost this year will be $30.00/kit, a slight increase. We always set the price point based on what we pay. The purchases will be on a first-come-first-serve basis. Mark you calendar to ensure prompt pick up within the week of delivery. Being timely means your children will experience the full life span of the butterfly. We will notify you when the larvae indeed do arrive at our office. Please do not come all the way downtown to find out they have not arrived!