First off, I have been farming for Motifs (Mostly) and Recipes in a more haphazard way then a more dedicated way, in the last few weeks I have found 4 Primal and 1 Barbaric Motif, several blue and a good number of green recipes... the numbers of items I wanted (Motif's and Recipes) dropped off precipitously when the junk items were added to containers. I also play D&D Next Encounters...
The current season's adventure has an interesting way to generate random encounters, they add an "Alert Level" to the roll, meaning as the alert level goes up, the chance for a random encounters raises from a low chance, to guaranteed, from a minor encounter to some really nasty ones... this got me to thinking about the container drop rates in ESO...
Each area a player enters can be assigned a level, 1 for Auberon, Glenumbra or Stonefalls... up to 5 for Reapers March, The Rift and so on. Cold Harbor would be 6, Craglorn and Cyrodiil would be 7 (perhaps higher)... Solo Dungeons would be a +1, open Group Dungeons add +2, closed Group Dungeons add 3 or 4... Bosses also have a +1... This value is used as a Multiplier that is used to determine the contents of Containers/Chests/Drops...
This means that if there is a .1% chance for a rare (Blue) Recipe, in Cold Harbor the chance would be (.1% * 6 = .6%)... the Boss in a Solo Cold Harbor Dungeon would have a (.1% * (6 +1 +1) = .8%) chance to drop a rare blue recipe... on the other hand, the Junk Items would be "Pushed" out of a containers in the higher level areas as the items in the container would have to fall in the 100% range for the container... levels of the items would, as they are now, be set by the level of the area/player...
Basically, this means a Blue, Purple or Gold Motif or a Blue or Purple Recipe would be more likely to drop in a container in a Dungeon in a higher level area then in the same container in a building in a low level area... Some accounting for the VR areas (Caldwells Silver and Gold) would need to be taken into account, but not as high as say Craglorn (Supposedly VR10-12)
Of all the things I have lost, I miss my mind the most...