Althoush like all of us who participate in this forum, i like all three years of the 1st gen Camaro.
However, reality is that the '69 model body style was more popular with the public and arguably one of the if not the most iconic body style of the muscle car era.
Many will dispute this, not agree with this, etc., and that is ok.
Obviously you should own, love, maintain, and restore what you like, not what others like, however, auction records, other sales records, etc. speak for themselves.
It is what it is - the '69 Camaro body was more popular to more people both "back in the day" as well as today.....and demand drives prices more than scarcity / rarity. Edsels are pretty rare. but........