I think it's kinda cute too but the wife prefers a fully black nose. We found a "potential" breeder with puppies at the moment. They're only 5 weeks old right now so they're not ready to go home just yet. We're still doing our homework and asking the breeder questions about the parents, temperments, etc.
Our Riggs has a speckled nose, it has grown blacker as he's grown older. I think you have a better chance for pink noses when the dog has a white mask instead of black because of the pigment. I guess if you're looking at a puppy with a white mask then the chances of his nose staying pink would be higher.
Here's our "speckled boy" lol
Ziggi did the same thing....almost all pink, then speckled with black and now almost all black. He does have a couple of pink spots but they are really small! One of the reasons we picked him was his cute spoted nose!
here is a puppy picture and a picture from last week. he is 18 months now.