Success.
Football is extremely tribal and enough time without trophies just leads to constant mockery from opposition fans which gets tiresome. Plus some will just overreact completely and other United fans will become almost as unbearable.
That issue removed, I'd rather watch an entertaining United side than a successful one. Football is an entertainment industry after all. People can say it's all about results but people only care about it because it's entertaining. If football was boring, less people would watch it and care about it so the trophies would be worth less.
Football is extremely tribal and enough time without trophies just leads to constant mockery from opposition fans which gets tiresome. Plus some will just overreact completely and other United fans will become almost as unbearable.
That issue removed, I'd rather watch an entertaining United side than a successful one. Football is an entertainment industry after all. People can say it's all about results but people only care about it because it's entertaining. If football was boring, less people would watch it and care about it so the trophies would be worth less.