I think he rushed his body tempering what if there were other treasure that were better. also If each treasure gives him a cool attribute why stop now. there must be better equipment later if this set can't be worn in the next level...
I still think he should or should've use(d) that jade dragon fruit. I mean why not. what is he going to sell it trade it ? maybe just maybe he won't advance to the qi realm and still get to wear the mask.