I'm basing what I said on the somewhat public comments of how the dealings were going a while back, and the part of stopped bidding is based on, you know, our last bid being a while back and the Pescara DS saying we cant come to agreement with Juve so we will take Verratti off the market, this also a while back.
And if an ambitious club bids what Pescara wants for him, and Verratti says I will wait for another, thats is basically indirectly declining them. And to say the least, he wouldnt need to do that to alert Juve of a possible deal with PSG, they would be one of the first to notice a player they are interested in are being sold to another club. Reason they arent doing anything is like you have said in your posts, they didnt deem it worth bidding that sum for him, fairly obvious, so why should the player be the only one obligated to keep waiting around in such a scenario?