Why is the better of 2 Asus B450 motherboards cheaper in price?

[pintree3]

Wanting to buy and reading here and there about motherboards I came upon these 2:
Asus ROG Strix B450-F Gaming vs Asus TUF B450M-Plus Gaming
I don't know if I can post links here but on a few websites, for example, versus, these 2 motherboards have similar specs, and an equal overall score, but one is preferred showing this:.
Why is Asus TUF B450M-Plus Gaming better than Asus ROG Strix B450-F Gaming?

• 800MHz higher overclocked RAM speed?
  4400MHz vs 3600MHz
• Supports ECC memory?
• Has USB Type-C?
• 1 more DVI outputs?
  1 vs 0
• 61mm narrower
  244mm vs 305mm

But this "better" board is actually about $40 cheaper. How can this be so? If they were from 2 different manufacturers I'd understand but they are not. Can anyone help me please. I was going to buy the more expensive one but then I saw this (based on what a vendor suggested) so now I am confused--totally.