H.265 vs ProRes

I understand the compression differences between the 2 but what I

am confused about is what am I getting with ProRes over H.265, or H.264

for that matter. Lets start with telling you what I am looking for.

Although I do not do commercial work  in the range of feature films and

TV commercials, I am expected to deliver a professional finished product

for the Real Estate industry. It is 95% outdoor aerial and ground

video. What I am wanting is more dynamic range and the ability to push

the image further. As a photographer working in RAW I know how far I can

push that image, pulling down the highlights and boosting shadows if I

need to. That type of control does not seem to be available in the video

world. When I shoot these large landscapes I am wanting to be able to

see the clouds as clear and exposed as I can some of the darker landscape

below. I find myself having to pick one or the other at times which is

why I try and shoot, as many of us do I am sure, in the Golden Hour of

the day when the ambient dynamic range is not as wide. However, this is

not always possible.

I am really trying to justify why I need to spend the extra $$$$ for the Mavic 3 CINE version vvs just the standard version. So far, I am not really seeing the benefit since I will need a LOT more

storage space to work with ProRes, both for capture and archiving.

You thought are much appreciated.

-Houston