Question since I don't own any Xplus.
When the vinyl smell is brought up, does it mean it smells good or bad?
Usually it's the same situation as with a brand-new polystone statue. Some collectors dig that new smell and with the typical X-Plus figures, the vinyl smell isn't overpowering by any means. It's more of a scent than something that feels like it's being given off by the plastic. Not the case with the GBG -- I don't like the idea of breathing that crap in until it's aired out.
Fun little example: as I've said, I'm leaving the figure in the garage to vent for a day or two. I went out to dinner tonight and when I came back and opened the garage door, I could smell that PVC stench from the driveway. No exaggeration. It was enough to mask the usual dusty smell of the garage.