I didn't really care about the breed as long as it wasn't small and/or long haired. We always knew we'd be adopting from the RSCPA so a mixed mutt would always be inevitable. My partner adores Border Collies and black labs as well and after meeting a few, I started liking Kelpies more and more.
I'm originally from The Netherlands so a 'true blue Australian' dog really appealed to me :P And then we met Loeka, a Kelpie X Collie. We actually were looking for an older female dog and Loeka was the complete opposite: he was 10wks old and he had a penis (tho no balls... so I guess he is kinda a girl).
I'm still not too partial about collies (it seems like all dogparks adhere to some 30% collie quota) but I fell in love with the kelpie breed. The more I learn and read about them, the more fascinated I get. I like their temperament but I also like the way they look as opposed to the stockier Australian Cattle Dog. AND he doesn't have the long collie hair.
/end epic story : P