Demanding

My sister just told me that my nephew demanded to have a new remote control toy. Last Christmas my parents bought him a Morphibians line of RC cars toys.They are well made and seem to work on ANY surface!! My nephew could not stop playing it until it got broken. I am not really quite sure how it got broken but my sister also said that the joystick is not working properly. My nephew got so sad and demanded to his mother to buy a new one. I promised my sister to get him one when I get extra money, but right now I have to send money for my grandfathers birthday in July. So, I explained to my nephew that if he will be good I might consider of getting him one real soon.