I think it would be a good idea to give each of the ingredient types a different minimum level, like Kyber Shards 1, small ingredients 2, medium ingredients 3, large ingredients 4, power cells 5 (charged and uncharged). This would be really useful to sort and search for the things you want, without having to go through 25 pages on the auction house. This could also be done with collectables tome pages 1, scales 2, and so on.
These simple chaanges would make the auction house much more easily searched.
I can not see any real downside to this. Afterall, most level 5 and below characters will not be using these items, but could still purchase them.
Comments?