Never really get the plea for acceptance of ignorance, things are always more of a spectrum than black or white. But it's not that so difficult as to not be worth a go. The context is important and relevant, but we've sold Cleverley for about the same amount as we got Gueye for, both transfers this season, seems a fairly obvious and reasonable comparison to make.
Coleman was a snip at 60k because he was under contract, but Cleverley was out of contract and free. You have to take wages and other things into account, but Gueye is more valuable and a better buy than Cleverley was on a free.