I don't really think that Wood and Peraza were all that valuable in the market. But then I never thought that much of Wood or Peraza.
It really doesn't matter what you thought of them personally, they both had quite a bit of value as trade chips, and that's why the trade was a big deal. Even if they wouldn't necessarily have gotten a ton by themselves in trade we could have gotten something nice if we packaged them in a larger trade. For instance, we probably could have sent Wood and Viz in a really nice trade with the Astros this past offseason, or made a mega trade with Freddie and Wood (and possibly Viz) if we had so chose. Obviously Wood got injured, but a 3rd starter with a ton of control left has a bunch of value.
And we could have likely traded Peraza by himself for the Reds 35th pick ( or made our own deal with the Marlins without including the Dodgers if worst came to worst), so it's not like we would have lost Wentz either way.