And? Did you consider how many elleon you spend on consumables to actually farm the 100 tokens? And did you open at least 1000 or more so you're actually able to judge the %-chance to get these items? Also you're better of just buying/selling the Enhanced Duranium Medallion and with that gold you can buy the cash-shop boxes which give you much more mats.
So no - these boxes aren't even that good/useful.
The boxes are OP, its roughly 45k gold to open ONE cash shop box, selling the duranium nets you 5 chances to get materials. I understand large numbers of boxes of each need to be opened for a sample size that actually matters, but ive opened over a million and a half gold worth of the cash shop boxes and got roughly 50-60 wings and 30ish horns plus repair mats. I opened 35 of the new chest and got 50 wings 20 horns 80gf 4k rubies plus repair mats and a ton of protectors. From this sample yes its very much so worth opening the boxes. Its so good my initial thought was they just destroyed the need to open the cash box equivalent. Also 35 token boxes to gold from duranium works out to roughly over a million gold, opening the boxes skips the broker cost of listing the wait for somebody to buy the medallions and the effort to exchange them into pay shop boxes and keys.