The price wont go away. This is the cost of top players now.
Even just very good players are going to be going for 100m.
If Barca turned away from this deal he would most likely end up at Real and fuck that.
The sale of Neymar has made for unusual situation and makes paying such big fees a bit easier. It is not the time to be scrambling around looking for cheaper gambles when have the money to spend.
Real, Man Utd and half the EPL will be heavy in the market in next few years. Get these deals done get out of it and look for more 'bargains' going forward as the rest ae left spending hundreds of millions on probably inferior players.