Mama's boy

I have been married to my husband for 17 months. I'm annoyed by how he relies on what his parents think to make choices for our family. I am fed up, and don't know what to do! Yesterday, we went to go buy an SUV, and he turned it down because he was worried about what his mommy would say! I'm this close to leaving! I can't stand guys like that! I'm all for him bring close to his mom, but this is TOO much!!!!