Do you now feel like 'second-hand goods' and no longer worthy to be cherished?
Ouch. That is just so wrong.

A hymen for an anniversary gift?
I'm with you on that one. Way nuts.

There is actually one thing I would count as a secondary virginity - and that would be if a person who has previously had relations with the opposite sex starts having sex with a person of the same sex.
I've heard of some sort of "virginity" being used in that context, which does make sense, I agree. Just as someone who has only had sexual relations with same sex partners and starts to have heterosexual relations.