Determining whether the 49ers overpaid for Brock Purdy boils down to two questions: How much does the team value the quarterback position, and how much do they value Purdy himself? Personally, I do not value the quarterback position enough to pay that kind of money. This isn't a criticism of Brock; I wouldn't pay Patrick Mahomes or Josh Allen that kind of money either. While having a great quarterback can fill seats in the stadium, sell jerseys, and typically lead to more wins, football remains a team sport.
The Quarterback is Just One Player
An elite quarterback can indeed change the game. A clutch throw or a game-changing run are valid reasons to pursue athletic quarterbacks with strong arms. However, what happens when the offensive line is struggling to make blocks, receivers can't create separation, or the defense can't stop the opposing team from scoring? This situation is often the reality for teams that allocate significant portions of their salary cap to quarterbacks.
While Patrick Mahomes and Tom Brady have played crucial roles in leading their teams to the Super Bowl, there have been instances where their performances weren't stellar, yet they still won. This leads to one reasonable conclusion: the quarterback position may be overvalued. To emphasize this point, none of the top ten current quarterbacks in terms of salary have won a Super Bowl.
Accepting Reality
Setting aside the argument that the quarterback position is overvalued, the truth is that its valuation is what it is and will likely continue to rise. This brings us back to the original question: Did the 49ers overpay for Brock? This question is subjective, but in my opinion, no, the 49ers did not overpay for Purdy. Eventually, the 49ers were going to pay someone, so it makes sense that they secured the most effective passer they've had in years.
Winning a Super Bowl does not necessarily require a gifted athlete at quarterback; in fact, I would argue that many Super Bowls have been won by quarterbacks who are more mentally resilient than athletically gifted. Brock can do it all, but his most valuable attribute is his ability to run Kyle Shanahan's system effectively. He makes accurate throws with anticipation, showing great trust in his coach and teammates. The 49ers found their guy, and they made the right decision by locking him in.