Kenwood True-X drives out of production?

I've been looking everywhere trying to find another 72X Kenwood drive, but NOBODY seems to have them. Fry's doesn't, CompUSA doesn't, TechData doesn't, I can't find them on PriceWatch, and ComputerShopper.com lists only 1 retailer who has them (but that's a dead link).

Are they out of production or something?

It's my understanding (hearsay from several customers) that they weren't that reliable-- we've only ever ordered 3 through our store and they all were defective. So it's possible they aren't in production anymore.

Have you tried eBay?