Not looked to closely. Saw it via FT premium fares forum. 1500 euros to vegas, 1550 to LAX/SFO. Near end of the year and on.

A timely hint as I was able to use a DUB-LAS example from my early nosing around after reading your post for good prices to answer a query in this other thread
http://v-flyer.com/viewtopic.php?f=4&t=297545