Mirror prices

Hello, could anybody tell me why replacement mirrors by Dorman are so much more expensive than those by Kool Vue? For my Geo Prizm 1990, the Dorman is $80 and he Kool Vue is $23 at the same store(s)! Should I avoid Kool Vue for any reason? Thanks for any tips on this!

I don’t know who the manufacuters were, but I’ve replaced two power rear view flag mirrors in recent years, one in a 1991 Camry and the other a 2001 Civic, and in both cases after considerable searching I found mine at VIP in their crash catalog for about $25 each. Both were perfect and flawless.

Thank you, I am going to choose by price then.