Would You Keep Both names?

I came across these double barreled names the other day. Why on earth would anyone keep both names when the combination produced these (note they are not made up, they are straight out of the wedding announcement pages):

Wang-Holder
Beaver-Wetter
Hardy-Harr
Traylor-Hooker
Poore-Sap
Looney-Warde
Crapp-Beer
Best-Lay
Busch-Rasch

Can you add some good ones?