Interesting topic, i love invincible and the whole thing about it not being successful is kind of rubbish, maybe compared to thriller it wasn't that big but for any other artist it was huge, no.1 in countries and sold 16 million copies.
Wikipedia"The album was a commercial success; peaking at number one in eleven territories worldwide, including the United States, the United Kingdom, Australia, France and Switzerland. Invincible charted within the top ten in six other territories.
Anyway back to the piont, yeah it would have been brilliant if he had toured the album, i would have loved to see him doing an invincible tour and only play invincible songs, the whole album start to finish.