Why is .177 so underrated?

I have killed lots of medium size game like coons and skunks easy, why does everyone treat the .177 so poorly like its incapable of anything, also I use the crossman phantom F4 rifle.
Update: I know but I swear it can take game that people think it can't. You could take a fox with it and maybe even a coyote. At close range you could head shot a deer and probably kill it.
Update 2: .177 does not cost more, .22 does, and have any of you even shot anything with a .177 before? You can take game that people claim only .22 pellet rifles can with a .177.
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