More airplane?

Tonight I read Ben a bedtime story in which a page had a picture of an airplane. After we finished reading Ben was asking for "mo' air-bay?" repeatedly. I didn't understand what he was asking for, so I asked him to show Mama, so up he got, walked from his bedroom to the top of the stairs still asking for "mo' air-bay". I carried him down the stairs and he ran to the front door pointing and still asking for "mo' air-bay". Finally I clued in; the other night we sat on the front steps watching spotting airplanes overhead, so he was wanting to go outside and watch for some more. It was really very cute.