Virus... to test or not to test?

[MateoinLosAngeles]

This month's AOS' Orchids magazine features an article by Sue Bottom in which a quick tour of her greenhouse with Dave Off (Waldor Orchids), to identify potentially virused orchids, turns into an orchid massacre.

This got me thinking... is it worth it? Should one test every orchid they receive and go through refunds and exchanges of virused orchids... if so... how many nurseries are really virus free anyway? And what's the worst that can happen? Shouldn't a vigorous plant be able to overcome infection?

Regarding ethics, I would never sell or gift a virused plant. But... for a private collection (of, yeah, a few dozen orchids), is it really worth it?