I don't think it's wrong and don't have any issue with someone waiting for their favourite colour puppy as long as temperament/personality is at the forefront.
I definitely have my colour preferences too. I generally prefer red above all else. But I try not to let colour play a role in my decisions to add a dog to the family. This time around, I ended up with the only black tri girl out of four girls and three of which were red, and I couldn't be happier. While colour to me is nice, it wasn't important enough for me to wait for a litter that would only produce my preferred colours. With that said though, I love all the colours that Aussies come in. So while initially I was a little sad I didn't get a red one, I wasn't heartbroken. And now I couldn't be more in love with the puppy I did get and I think she's super pretty and am really attracted to black bis and tris. Maybe if I didn't like a certain colour at all I would wait, but honestly waiting for a puppy for me is hard enough. Nevermind having to wait for just the right colour haha.
I definitely have my colour preferences too. I generally prefer red above all else. But I try not to let colour play a role in my decisions to add a dog to the family. This time around, I ended up with the only black tri girl out of four girls and three of which were red, and I couldn't be happier. While colour to me is nice, it wasn't important enough for me to wait for a litter that would only produce my preferred colours. With that said though, I love all the colours that Aussies come in. So while initially I was a little sad I didn't get a red one, I wasn't heartbroken. And now I couldn't be more in love with the puppy I did get and I think she's super pretty and am really attracted to black bis and tris. Maybe if I didn't like a certain colour at all I would wait, but honestly waiting for a puppy for me is hard enough. Nevermind having to wait for just the right colour haha.