As a casual fan, it does seem that there is a lack of good QBs in the “prime” age range. There’s the old veterans in their late 30s to 40s like Brees, Brady, Rodgers, Rivers, and Roethlisberger. There’s a bunch of young guys like in their early to mid 20s like Mahomes, Jackson, Watson, Mayfield, Jones, Murray, Burrow, Lock, and so on. But there seems to be a lack of quality QBs in their late 20s to mid 30s. Russell Wilson is the only one I can think of off the top of my head. That probably explains what’s going on with QB contracts.