I find the prices for a full wrap very high. 10-15% of the car purchase price is ridiculous (in my opinion).
I've bought and sold many cars over the past 25 years and most of them I've kept in as near new condition as possible. It has made 0 difference at resale.
I think for me it's about the owner's wants/needs and not the resale or the next owner. As the years and life has progressed I no longer have the time/energy to look after my car as well as I did previously so for me a ceramic coating would work to make the car easier to clean and keep clean - as I understand it and please correct me if I'm wrong as I've never had one done before. I would also think that a paint correction before applying to coating is a good idea.
The other option is to go with
@PJF000 suggestion above. Buy the white and then wrap it in the colour you really want.