Looks to me like the going price for static templates is $20-$50.
https://themeforest.net/category/static-site-generators https://themeforest.net/category/site-templates https://jekyllthemes.io/premium
https://themeforest.net/category/static-site-generators https://themeforest.net/category/site-templates https://jekyllthemes.io/premium