Just an update... I found someone on Ebay who had 8 NEW Delta Alessi Wine Glasses - I just scored them for about $15/glass, SIGNIFICANTLY less than the comparable ones made by Alessi for purchase. Yes, I know Delta's probably aren't quite the same quality but for me its about the airline.

If anyone is interested, she said she has more, PLUS other Delta Alessi plates. I can DM you her eBay handle and put you in touch!