Any 2 star crafted item that only costs 9 tome items is well worth it. But the items like Vanya legs of healing which cost 27 tome items I believe are simply NOT WORTH the time. That's 3375 tomes for one piece of gear, vs the 800 cost for darklight pants. Same with every piece of jewelry, except for earrings, they all cost 18 tome items. I'll be going for them of course and meld some Det and Vit, but still. 20+ runs for ONE piece of jewelry is insane, especially when the only options for tomes are two dungeons that most of us are sick of farming by now, after 200+ runs.