Above Grade Level Manipulation?

My 7 year old son has been trying to get me to buy him more Pokemon cards for the past week or so.

Today he came home and told me he wants a hamster.

I told him no.

He reiterated that he really wanted a hamster because they are cool.

I told him no.

He dejectedly told me that maybe he could just get some Pokemon cards instead.

I told him 'well played'.

He smiled.