Lukaku on last day of the window not too dissimilar, albeit a loan, was decided very late on that Chelsea were happy to let him go out on loan rather than stay at the club.It's not even just price, it's opportunity.
As an example. Take Fellaini. We intentionally lashed a last minute club record bid in, knowing full well time was a factor. If we went earlier, he wouldn't have come to Everton.
Clubs and players will get itchy at the end of the window. Players want to play and clubs want to get money in/wages off the books/unhappy players out.
I think it can be a smart approach, especially if you’re cash strapped. But our little injury crisis with the left hand side of our defence getting injured in the week before the start of the season is making us look a bit stupid and left us with a makeshift XI for the first couple games of the season.