His only concern was what Obito had got him and he made this clear by extending his hand out to him, and in one of his very rare moments, displayed utter displeasure on his face. But here's the thing: when Kakashi had received Minato and Rin's gift he wasn't excited at all. However Obito, too busy being jealous of his teammate's achievement, neglected to buy him anything.
When Kakashi had achieved Jonin rank, the Minato and Rin decided to each get him a present which they did.
