Big clubs not spending big

Has anyone else noticed, that, despite having huge transfer budgets left, the big clubs doesn't buy any big players. Im in my fourth year now and the only club who has spend +20 mill euros on players is Man City. Checked Barcas and Reals remaining transfer budgets and despite having 200 and 300 mill euros left, Barca have only spendt 10 mill on various lousy players and Real have spend nothing!! Is it because they are in debt?

yeah i believe its to keep the profit and loss as a possitive its what ive started doing im getting 53mil transfer budget at west ham and ive still got 50mil this is in my 9th season thou... but doing that has made the board buy a new stadium lol... i dont know why real and barca do cuz all they do is make profit lol

Is there any way to change this? I enjoyed big transfers in previous versions of fm and this is just doesn't realistic for me. My striker scores 40 goals/season and Real is offering 25M for him I wanted 50M for him and they cancelled offer despite having like 300M budget transfer.
Then they end in quarterfinals in Champions League -.-