The SS isn't expensive at all, even for 326 grade. What's expensive is machining higher grades of the raw material. For instance, the production expenses for a device made of 304 vs 303 grade can be double the cost b/c it just takes so much longer to mill. For the money, I highly doubt you're even getting 303, and I wouldn't be surprised in the slightest if the materials they were using contained lead. Nobody will ever admit to it, but I'm sure it goes on.
And as for what HappyTimeHarry said, while it might not be easy to spend the extra $80, there's a certain level of satisfaction that comes from owning the real thing, that in my opinion, always outweighs the money you'd save. And honestly, the difference in price is equivalent to 2 weeks of smoking a pack a day, or 1 if you live in NY.
But despite all that, why support an industry that just rips off the hard work and intellectual property of others? Jim, the maker of the DID, is just such a good guy, and goes to such great lengths to please his customers (both current and prospective), that it just seem so wrong to take money out of the man's pocket. Anyways, thieves will be thieves, nothing I or anyone else can do about that, so it's just up to the community to decide whether or not to support them.