CoC1 is very poor quality and super unfinished (In terms of content, not story). Idk why you'd pay for a forever unfinished many years old game.
I just replayed CoC1 yesterday and I have to say that this assessment is spot on.
It lacks a lot of QoL features TiTS and CoC2 have, the content is disjointed and quite a few stories feel unfinished, even if it is just the lack of closure.
If Savin and his team still want to give us the chance to have some background choices to carry over, it may be better to have an application like Dragon Age Keep or just ask for them, since playing CoC1 after getting used to TiTS or CoC2 is just a pain.
A remake of CoC1 could be fun though, but as far as I understand the situation, Fenoxo does not actually have the rights to all of its written content. So he couldn't polish the writing, cut some stuff and give closure to other stuff even if he wanted (and had way too much time).