That makes it so popular. For fun I have been watching CKs latest videos on pro player rackets/tensions and I would say 50-60% of pro players all use BG80.
It’s been around forever. It’s a string I used on a demo racket years ago but never paid attention. What is it about BG80 that is so unique or wanted? There are other strings that “rank” higher in every facet by comparison. Yet everyone prefers the old school string.