We'd retain our last names for our respective work purposes, but for family affairs we wanted to be a united front. If he wasn't going to take my last name (because why should either one of our names get special preference?), then we needed another option. For us, merging was the most elegant solution.
Just a few short months ago, my parents celebrated their 30th wedding anniversary. Like most couples, they have also faced their fair share of challenges during the duration of their marriage, and they relied on each other to get through them. I feel fortunate to have such great role models for my own marriage.