I toyed with it, but the top 13" Air spec'd accordingly is the more of less the same price as the top end 12.
Sure it weighs next to nothing, but that's always been the Air's selling point. Only it's got a much faster CPU, more connectivity options and a slightly bigger screen that IMO doesn't impact the form factor that much.
If they'd priced these at entry level, same Mac Mini and a bit more then maybe but I struggle to see the point of these. That's coming from someone who was really looking forward to the release, but now is a bit "meh".