I think it's a good thing. Why not bring back a product that is not available any longer? It's not like they are selling Thiringians and labeling them Escher. Taking the effort and risk to bring back a good product and sell it at a reasonable price is a big effort. In the end it doesn't matter what they are called, as long as these stones are mined from the same source as the vintage ones, the quality should be the same. These stones have been around for millions of years. Sure, using the name is a good marketing move, but we are talking about some guys doing this out of passion, it's not a mass-production.