It used to be worse, though...the only useful thing you could do with a dupe was scrap it for blueprints. I was upset that I got a dupe 5* from logins, but now she's catching up to Sarah and will eventually surpass her.

Not to mention that the 'elite' level will eventually be the only way to get the best out of them. Of course, I'd also much rather have a new 5*, but the small population of 5*s can be looked at as a blessing because in a larger pop with no dupes hardly anybody would ever get any tanks to elite status.