My e-ring was 18K WG and I wore it pretty much every day for 9 years. I think I got it replated 3 times in 9 years. It's not very expensive and it's not too much of a hassle. For me, it did bother me when the yellow gold color started to show.
I recently got a new setting and went for PLAT, but since I've only had it a few weeks I can't really say if I like PLAT better than WG.
I recently got a new setting and went for PLAT, but since I've only had it a few weeks I can't really say if I like PLAT better than WG.