I can't speak on behalf of avax and I do not own any avax myself so that is another topic and if you want to learn more about avax I suppose someone who has avax should answer. But in the general idea why would something that was printed beforehand should worth anything in the future could be answered without talking about one specific coin.

I think it is used because at the end of the day we are in a situation where printed or not, many coins get attention as long as they are decent, we have three coins in my opinion, one is the old ones, the ones that was  created long time ago, two is the new ones that are legit and good, and third ones are new and old scam ones. Finding that second one is hard, even if it was printed beforehand, as long as it is a legit and decent project with future plans that means it could mean a lot as long as there is a reason project finds a way to get people to buy it and make money.