I have a V4 with 50's in all crafts except enchanting. That character researched nearly every trait there is, excluding nirnhoned.
I'm starting a totally new character to focus on dungeons, and I don't see much point in worrying about crafting as I can switch over to the V4 and make the item for her.
Forgetting achievements, and the fun of crafting, is there any benefit to doing it on this new character?