Since it's your dog and you'll be the one living with it day in, day out, go with what you want.
I'm actually surprised I was met with only a little wariness about getting a border collie, I was expecting a whole lot more resistance to the idea, and I still live at home so I want my family to like my dog-but my Mum's a sucker for them and my family knows how nuts I am about dogs and the breed pretty much fits me perfectly, so it went over fine.