mote of light is to easy to come by. I agree with a material trading post for ALL crafting material such as plasteel plating and saphire wire. buy and sell for other things. but, legendary materials should be a bit harder to purchase if at all. the raid coughs up tons of that crap, heroic missions cough up 2 on level 28 difficulty. it's good where it's at for the availability of the legendary material. I do support maybe a forge, where you combine a selection of mid-grade materials to build legendary material. for example. 1 shard could be crafted from 2 mote of light, 10 spinmetal, 5 spirit bloom, and 25 helium coils, along with a fee of maybe 750 glimmer. this would make it fair because of the large amount of material needed to actually build a legendary crafting material.