There are differences between a magical and a non-magical object
(other than the obvious one about a magical object being a priceless artifact)
Magical objects are much more resilient to damage than normal ones. This has two potential effects in the game:
Magic items have resistance to all damage (DMG pg. 141)
Most monsters and spells can't damage magic items. For example, Rust Monsters and Oozes cannot dissolve magical armor.
How often this comes up depends on the campaign, but it's good to be aware of this.
