Hmm, I thought 78s were made from pretty strong stuff, and that the needle was the wearing part when playing those old discs? Why would you worry about harming

Hmm, I thought 78s were made from pretty strong stuff, and that the needle was the wearing part when playing those old discs? Why would you worry about harming them when playing? Modern vinyl, I understand is softer and will wear with repeated plays but the old 78s should hold up much much better?