Well, I guess I'd add a couple of things here. Firstly, I find the the "I moved from my father's name to my husband's name" argument a bit odd from a linguistic perspective. Surely your husband also has 'his father's name' if you want to look at it that way. Why is your name referred to as 'my father's' but your DH's name considered his own?
Personally, I did take DH's name. I wanted me, DH and any future children to have the same name. I wanted us to be a unit, united by one single surname. I know others don't feel that, but for me it was important. For me, sharing one family name is an outward show of unity.
I thought long and hard about taking DH's name, and did consider other options (him taking mine, both double barrel, merge and make a new name, etc). But in the end, I like his surname and mine is dull. And fundamentally, we are both lazy and that is the easiest way to change your name.
I do know a lesbian couple who merged surnames when they got a civil partnership, and I've always thought that was pretty cool. Sadly mine and Dh's names would not have merged (well, not as anything you'd want to be saddled with).