I never kept that many spares, though I do have one or two spares for each console just in case something happens. I might have more multiples for PS1, PS2, or others I just never sorted out yet. Exceptions for rarer consoles where I only ever found one, or for consoles I don't really care much about. I wish I had more space to store them but I just don't. As for games, I rarely kept extra spare copies for any title. Though for some titles I wish I did, with how prices have changed over the years more recently, many games would have been good for trades these days.