The last big money buy for Real Madrid was Bellingham and between the summer transfer of 2020 till date, Real Madrid has spent a total of €303.5 million on purchase of players. That's to say, in the last 5 years, Real Madrid spent this amount of money and had sales of players within this same period at €301.35 million. I'm just marveled at this because before now Real Madrid was known for spending big but now seems it has changed and it's the other teams that are the big spenders now.
Didn't Real Madrid buy Mbappe next after buying Jude Bellingham, Real Madrid already has a complete squad for attackers and that's why they aren't spending big money anymore. Real Madrid are known for spending big and also achieving lots of success with their signings and although that of Mbappe hasn't workout for them but I don't think they made a mistake there. With time they'll get a balance team that's going to help them to become more comfortable. It doesn't matter how much Real Madrid spend in the market, it's never a waste because they'll win trophies to recover and be in a balance.