As a curious bystander, I pay attention to the purebred sales and for speckle park it appear Aussies are the ones paying big dollar for speckle park.They are going really well in Australia at the moment. I thought they were going great in Canada until i read @Heronfish comment.
They chase them here at the saleyards, kind of the reverse to docking, and the crosses too.
I've got a bull i bred from and embryo, and a young heifer also from an embryo. The bull is great, really easy to work and doesn't feel like he needs to push everything over. The heifer is the same. They are Canadian genetics. The bull is very thick but quite short and is carrying very good condition for not much feed. I've put my bull over a few cows with the first due in two months. I've been told by so many people, as @farmerjan says, the meat is fantastic and marbles really well. One guy told me once you've eaten a speckle steak you wont want anything else. He wasn't a speckle breeder either. So hoping for a bull calf i can steer and grow out and find out for myself.
From what I have seen here, the market is niche, with some guys using them for heifer bulls, others owning them for the novelty. Just one example. I was at a bred heifer sale this past fall where the stock was primarily red angus with a smattering of simmental and black angus crosses.
Nothing sold for under $2000 until the pen of speckles ran in. They sold for $1700 with one bid.