There is a very basic premise that many in the dating market do not seem to grasp, or perhaps they remain in denial to justify their own choices. Your sexual market value, as the term infers, is dependent on the opposite gender's preferences. Sure, there are outliers when it comes to taste, but these exceptional cases do not negate the generalisation. It is primal to a degree - rooted in the desire to create optimised progeny.
What a man values when selecting a woman is not the same as what a woman values when selecting a man. For men, it is beauty, youth, fertility, and ease. For women, it is brawn, wisdom, wealth, and competence.
The dating market begins with young women in their early 20s having the greatest selection of suitors, while young men often feel replaceable. Then, as time goes on, the tables turn - men gain a broader selection, and more mature women may find themselves competing with younger women for the same men.
This is also why younger men refine their charm early, while mature women with pleasant dispositions often secure long-term relationships.
This isn't rocket science.
I am drawn to the clarity of your thinking