I don't think expensive restaurants are really in competition with cheap ones (or Mercedes with VW) but I got your point. Still I believe the effect will be close to nil: expensive restaurants and luxury houses already buy originals. Everybody else care more about the price of what they buy. As long it's not too expensive and it looks good enough it's a sell. My point is that this is going to force Chinese companies to do some design, maybe hiring European designers first then learning to do it themselves. No extra sales for European furnitures and it's still a long shot to 3D printing your own furniture copying a famous one. Think about leather, steel, wood, springs, hinges, etc.