My opinion: if that many mice are getting in the house, it's time to undertake vigorous management outside.
Yes, they are destructive little wreckers, peeing and pooping and chewing, but more importantly they can import zoonotic diseases. Especially if are deer
mice, which potentially carry hantavirus (related to Ebola as a hemorragic (sp?) fever. It's not hypothetical -- there have been human fatalities in my region due to improper cleanup after an infestation.
Anyway, I have a snap-trap-line to mess with these little dudes around my residence and outbuildings. If they want to go play in the woods, more power to them. (And on the occasion that a least weasel sets up shop, the problem is munched away with hyper efficiency.)