It's easy to look at the number out of context a few years later and say that was some Florentino-level profligacy. I disagree and, to BKWhat's point, absolutely falls in line with Juve being ruthlessly effective at getting good value out of their business as opposed to irresponsibly splashing cash around. That wasn't simply buying Higuain, a top 3 Serie A player of the decade, but *also* a move to decisively bury a Napoli side that had been nipping at their heels.

As far as the citing of sources, I don't feel like either of us is trying to get particularly academic here, so here's a google of "gonzalo higuain juventus transfer reaction"

https://deadspin.com/juventuss-ungodly-fee-for-gonzalo-higuain-is-well-worth-1784341771

https://www.eurosport.com/football/serie-a/2015-2016/gonzalo-higuain-s-78m-juventus-move-its-place-in-history-and-what-it-means-for-football_sto5699162/story.shtml