Yes. I've noticed that too, but they are a small, young business that's growing in notoriety so they will be focussing on the bigger volume machines in order to bring in cash flow and give themselves a stronger foothold in the industry.
They produced that concept Rocket 3 for a customer so it was a one off.
I'm pretty sure that they would offer more for the Rocket on their website, if there were bigger numbers in the game, so just give them a call.
However........handmade = $$$$