He wants transformer

Yesterday I took my children to the salon in Walmart with my friend. I wanted my son to get a haircut. That was the first time that he had a haircut in the salon. He was happy and he said that he wanted to go back there again for his next haircut. After the haircut we went shopping in the store he wanted to buy a Transformer wall poster and a t-shirt. I told him he had a lot of things already and he had to choose between the Poster and the t-shirt he said he wanted the poster. I bought the two for him anyway I was feeling guilty since I know that he really wanted them both. He also wants us to shop in the toy section to look at the transformer toys but I said no. He wants all the transformer he sees.