My wish is that all basements are like yours..
I just happen to see to many that are damp or wet with no conditioning.
I would have to say that out of every 1000 inspections about 100 don't need any de-watering systems.
The problem is that things constantly change in a home..let's say new owners don't clean the gutters and now there is water in a basement after 30 years...never happened before says the old owners.
That's the reason I recommend dehumidifiers and sump pumps if you have a hole in the floor.
You don't need them until you need them...then it's a mold issue.

another 4 letter word. Hope I don't get banned.
I have an older home built in the 1920s. It has no water in the basement and no leaks. But in the summer when we get heavy rains it gets damp. I don't have A/C and there is no waterproffing on the outside foundation walls.
Perfect case for a dehumidifier. Now I wish I had your basement.