Mannlicher is correct. All washers hold up just fine to not being used.
I'm a bit confused, and maybe you can clarify some stuff so we can help you better. You collect knives but dont use them, and you have no folders in your collection, correct? What is in your collection? Do you ever do anything with your knives? Do you own any quality (not necessarily expensive) knives?
As it stands, it sounds like you are not that into knives, and you are not terribly interested in using them. Nothing wrong with that. So just get what looks coolest to you. :thumbup: No point in having a boring looking knife with excellent washers sitting around on a shelf. Especially a 20 buck one. What's the point in that?!?
"See that plain looking knife on the shelf? If I was using it the ergos would be great and the washers would be smooth."

Silly!