In the days of ISO 400 film (and ISO 1600 when 'push' processed), the use of an f/0.95 lens to simply 'get the shot when it is otherwise impossibly dark' -- to capture a shot in -1EV lower light in spite of less than best lens sharpness and contrast at wide open aperture -- made sense to a greater degree than today, where we can simply bump the ISO upwards to shoot in -5EV to -6EV lower light... 1600, 3200, 6400, 12800, 25600, 51200, 102400.
Today, only the rarity of a superfast max aperture -- and NOT the IQ of the lens! -- gives 'collector value' to an otherwise optically mediocre lens which is no longer 'valuable' for extra-low light shooting.