Greens are pretty useless when blue's are quest rewards and with commendations.
Now if crafted items had a boost compared to non-crafted items of *the same kind* there would be no issue, and crafting even lower items would be in desire.
As is however, it really is just cheaper to buy in a shop/with commendations, ruining crafting. This RE doesn't help much either.
There is actually a very good market for low to mid range items (mid range especially) that gives amazing income if you can put yourself in a position to take advantage of it.