> 1.5x or double time.

Is the premium really that large for the night shift at (for example) a hospital? But even if you can't do 24/7 presumably there are physicians and technicians who would be willing to do either early morning or late evening without demanding much of a premium.

A massive daytime only facility should at least enjoy reduced capex and maintenance burdens if they have enough machines in one place. Less duplicated infrastructure and everything closer at hand.

Although if as you say even a small service can paper over 6 DNAs without missing a slot then maybe there isn't all that much to be gained here.