I used to have a 35mm SLR camera with an f1.2 prime lens which produced incredibly shallow depth of field when wide open. I loved the differential focus effects I could achieve but you wouldn't believe the complaints I used to get because "parts of the picture were out of focus".
Then I started shooting video and as the sensors got smaller, the depth of field increased until eventually almost everything was in focus from the front element to infinity - at last the holy grail of wall-to-wall sharpness had been achieved!
So, now we have high-definition cameras capable of incredible detail but suddenly everyone wants most of the picture all blurry again... I give up!