sure it is. i would say that most restaurants serve wine by the glass from bottles that were open a day ago. as well they should. should the patron be responsible for corked wine? of course not. most reputable distributors and wine stores will reimburse a customer for a corked bottle. my wine store does. as far as restaurants paying their bills, well, that's hardly news, as we all have bills to pay, and i don't see why i should be expected to throw them some extra cash just because the electric bill is due. a big concern that i've seen is offering wines that are readily available, but at 400% markups. offer something unique that i may not know about, or that i can't easily get, and i won't have too much of a problem paying that markup. charge me 10 dollars for a glass of Santa Margherita, and i'll be a little miffed.