Well, to me, now that this thread has me thinking about it, the hierarchy is this:
-metal chopsticks at home (because I'm Korean and live in Korea, but I don't actually ever use these except for stirring a drink if I can't find my bar spoon)
-metal chopsticks at almost every low-end Korean place
-wooden chopsticks at every 'ethnic' Asian place - Japanese, Vietnamese, Chinese, etc
-bamboo disposables with takeaway/delivery, or whenever and wherever you want - I can go downstairs to the convenience store and the guy will give me 20 pairs for free if I need, they give you a pair with every pack of ramen people buy. Ate sushi not long ago at a decent restaurant, and the chopsticks were disposable bamboo. They were turned nicely and not the break-apart kind, but still, couple hundred bucks a head and the chopsticks were throwaways
-bone - Chinese fine-dining equivalent places, the only really fancy Chinese places I've been to were in Japan, at Japanese-Chinese restaurants - the china is nice, the chopsticks are nice, the glasses and linens all nice, etc - the same as if you were to go to a French restaurant and eat off Reynaud with Cristofle and Laguiole, i.e. they expect you to spend a couple hundred bucks a head, at least.