To me and my current lab's production methods, that would be a horrible price and horrible roi. We buy zirc in bulk and get a great price at 1/4th or 1/5th the price of what is proposed. I then factored in dipping stains and loosely calculated that each unit is approx $.018 a unit, plus an additional $0.47-0.70/unit to pay a tech to green-state stain, totaling approx $5.20-5.43/unit. Compare that to the $20/unit price of the proposed zirc. (Actually, I rarely get 25 units out of a puck - it typically on average is 22 units per puck - thus the cost per unit out of a $500 puck is $23/unit.) Now for $17.50 more per unit, if the crowns had excellent translucency and a high mpa, then it might still be worth it if part of the higher price could be transferred to the docs, but often times they fight over an extra $1 or 2. I have yet to see a translucent zirc that really knocks my socks off. When I do like a trans-zirc, it doesn't fit all indications because of its low mpa. Show me a high trans, high mpa zirc and I may be truly excited. Same with the pre-shaded stuff. They aren't really big-game changers to me and only increase your inventory and slow down milling production.