Depends on what the blade is, and what it's going to cut...
A knife, if it'll cut chicken cleanly with minimal effort and no stringy bits that annoy me, then that's all I want. If the knife will do that, then it'll do anything I reckon.
A chisel, if it'll pop arm hair (not shave, the hairs need to mimic a missile) at 30 degrees, it's good.
A plane blade, needs to pop arm hair while held off the skin. Or shave my beard. Or split free hanging hairs.
A razor, needs to shave a dry beard cleanly, no irritation. I know this isn't proper, but I'm very gun shy of my straight at the moment...
Oh, that all needs to be off the stone, but the razor may be rubbed over untreated leather to sort it out properly.
I like my stuff sharp, and it's not like I'm lacking for materials to get that. It's more a case of "what's going to get me my 'sharp' without annoying me too much?" is the trick.
If the blade is sharp enough to cut what needs cutting and do it as cleanly as it needs to be done, that's enough thank you very much.
But you shouldn't listen to me. My main cooking knife looks like recycled garbage.
(I just need to remind myself to use a light touch, otherwise it sticks into the chopping board. Looks terrible, but it is sharp... )
Stu.