It’s interesting because the dominant view on here is „even a million or two for damned Bayer is a million too much“ while market leader Real pays 10 million to get TAA a few weeks earlier.
In think the realistic/optimal solution is somewhere in the middle of those two views/approaches but I definitely rather agree to the „imperative“ rather than the „no way pay more than his salary“ attitude 
As yes, even as we should cruise easily through the group stage that extra playing time and getting to know the other players and our playing style for TAH (
what a coincidence) might proof just as crucial as Real obviously expect it to be for TAA…