When you have two pairs of black leather shoes, that's a backup. When you have an old carpet, that doesn't look as fancy as the new one, that's a backup. When you still have a pair of skies, although you fell in love with snowboarding, that's a backup.
Backups are only needed, when you can't replace what you have lost with something similar. This goes for individualized belongings, such as data or souvenirs. But it definitely doesn't go for industrial goods. Get rid of what you obviously are trying to replace. Don't give in to the temptation of keeping it just in case you'll need it again one day.