You could still buy world class players for 30-40m a few years before we bought Aubameyang but after the big money came in to the PL two or three seasons ago, prices for even average players almost doubled in a couple of seasons.
I’m sure the season after we sold RVP, if we had gone to Dortmund and offered 30m for Aubameyang, we could have got him.
Players like Jovetic were going for around 20m at the same time we were showing interest in Aubameyang and Reus, and strikers like Costa and Lukaku were around 30m.
It was obvious, when the new money came into the PL, that there was going to be a big increase in spending because all the clubs had more to spend so it meant that average players, were going for as much as world class players were, in the previous seasons.
Obvious to everyone except Wenger and our board.