When Boeing developed its updates to the base versions of the 777, it came up with the higher capacity long range 300ER and a lower capacity but ultra long range version, the 200LR.  The 300ER sold very well but the 200LR was more of a niche product and, while it sold, it never went in the same numbers as its larger sibling.  Etihad was one of the customers but they have now decided they have no further use for the type and it is being retired.  I was glad to catch one at LAX in the days running up to their retirement.