I've already got one pair on their way to me (W5000) and my wallet sure as hell can't take another pair of ~$600 headphones.
And Jay, you may well be right about another headphone taking the place of the W5000 eventually, but simultaneous A/T's is not going to happen so it'll have to be a different pair of VTGs should that day come. For now I'm just planning on giving the W5ks a fair and thorough evaluation.