Ah, that's a piece of advice I stand by. You see, your Bitcoin wallet is like your personal bank vault. It stores the private keys needed to spend your bitcoins. If you delete it without backing up, those coins are gone forever.

It's always smart to keep old copies of your wallet just in case you need them later on. You never know what can happen - computers crash, files get corrupted... life has its way of throwing curveballs.

So yeah, don't throw away the key to your bank vault! Always have backups and secure them well too because if someone else gets their hands on 'em... well that won't be good either! Stay safe out there folks.