This is also a question about what is your time worth?
If you want high quality with either a camera or a scanner I was hard pushed to do more than 1 a minute. Roughly 20 hours to do 1000 pictures. Not worth my time. The company I used years ago is no longer in business.
I have used a company- Legacybox- to digitize old vhs tapes about 6months ago, they did a good job. They do pictures, but I have not used them for pictures.
Pro's will have better equipment and a better workflow than a home user. But they are not cheap- costs about $500 to scan 1000 images at Legacybox.
Time vs money- like so many other things in life.
gary

Thanks for all the suggestions and help here. I'm going to start with a good scanner and see how it goes.

It will go slowly. One reason I kept at it and was my pace, it was under no deadline. And I worked on one the family tree as the images scanned. That can be very addicting. It is cool to see the family tree unfold. I stopped at 8 generations back as there are so many cousins at that point it becomes pointless.

Not much. I can do this as a background task while I'm at work.

yup - the tonal detail in the car's flank is missing - it is all white

dunno if that is the scanning, the print, or the negative