Maybe a good question is something like how long it lasts before you have to replace it? Meh...hard to say how much that would help either way it's answered.
It's plastic and has no moving parts. I'm thinking you might never have to replace it.
I would like to narrow down price too. It's tough to know to what extent though. Like <less than $10. It needs to be pretty specific or it probably won't help too much.