At whatever replacement cost per glass ($30-60?), restaurants would need to be selling a decent wine or two to justify the risk of breakage if they 'break out' the Riedel glassware.

However in the US, with a tipping culture, I believe a generous tipper may be able to sweet-talk the server (or in many cases the sommelier) to be generous with the Riedels too.

(Then how much extra would you tip...it would have to be a generous tip!)

Back to the OP - have you returned back to this place and did you get what you wanted?