Well, I would hope that a U67 would sound better! They cost ten times as much!
I don't think that CR3As are the best mic at every application. I just find that they are very good at every application. The point of the article being that they are a great alternative to a U87. I find the CR3A more musical than a U87, actually. Before I changed my techniques on each, they would always get picked for piano and toms. They are quite a great tom mic, actually. You should really try them in those two applications before you sell them. If you do choose to sell them, I see them going for about $350-400 on eBay these days.
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