Exhibit A) There's a village in New York named after us.
Exhibit B) A Google search reveals 241,000 entries.
Exhibit C) After receiving several mysterious wrong numbers on my mobile phone, a little bit of research uncovered another Peter Cooper with the exact same mobile number as me, except the last two digits were reversed. I'm sure he thinks there are way too many of us too.
Now, this preponderance of Peter Coopers has never bothered me before. But now that I'm thinking about registering a domain name and perhaps getting something resembling a "proper" author website set up, I find that the only peter.cooper domain names still available are way too obscure for anyone to ever find. So, unless I decide on a Fiji extension, my only option is to register with something other than my name.
Alas, my parents never gave me a middle name. I've tossed around the idea of inventing one, just for writing, but it just doesn't sit well with me. I think I'd end up looking at the name on the side of a book and thinking it's not really me, because it's not the name my parents gave me. Deep, perhaps, but that's the way it is.
So I have to keep thinking about it, and checking out what other authors have done with their websites. Many of them are blessed with unique names, though I'm fairly certain most of them secretly wish they had a village in New York named after them too.