There are no benefits to purchasing the bride and groom ears except that they are fun to wear. We just got back from our wonderful WDW honeymoon and we wore them because we just thought it would be fun. We got a lot of congratulations and special poses for the photopass but other than that nothing very much. We did indicate on our reservation that it was our honeymoon and we got a voicemail from Mickey and Minnie at our resort and a signed picture of Mickey and Minnie and at some of our ADR's we got a slice of cake. Even without all that stuff it will still be a wonderful honeymoon for you both should you decide to buy them!