Exactly. I have a fully functional SB16U - with a legit 1300W amp - sitting 20 feet from me.
Neo prices have gone up 1400% since we designed that motor. Even when neo prices were quasi-rational, that motor alone costs far more to produce than most complete high-end woofers from other brands. Now with neo through the roof and into the next solar system, there is no way that motor is economically feasible. It's too bad, but we can't control neo prices - so don't hold your breath on the SB16U - it's not on the production docket.
This is a good example of what a world-class radial neo woofer is costing these days on a retail level....
http://www.parts-express.com/pe/showdetl.cfm?Partnumber=293-674