Sometimes, sometimes not it depends on current prices and what you want.
I suspect a complete Aegis set (which would cost several million) could *not* be bought with the proceeds gained from selling its component anomalies....
or if it could it would be close, there would be no major benefit and you would loose the sure fire way of crafting in exchange for the unsure prices of the exchange.
Hmm okay but if it is so close with only 1 or 2 items it's kinda useless then because if u never craft and sell all your materials from the beginning instead of leveling up u can probably just buy those items and still have a crapload of EC in your pocket.. I mean since i stopped crafting i banked all particles and other materials and have them stacked and they seem to sell so easy. When u have saved them all and not used for crafting your not talking about a million EC but hundred of millions EC.
I think this should change because if everyone see's that they wont craft and then there isnt anything to buy anymore.