Co2 Leaking from pressure release valve

[gotbags-10]

Trying to figure out if I should buy a new valve or replace the whole lid. Which of the two generally goes bad? I did put some keg lube on the valve threads and it slowed considerably.

 

[Homercidal]

I'd just replace the valve if you can find one. I just think it would be cheaper. I don't think either of them go bad regularly.