Why is Bapusaheb Buti considered to have 'great luck' in the story of the Samadhi Mandir's construction?

Bapusaheb Buti is considered exceptionally fortunate because the mansion he built became the sacred final resting place for Sai Baba's physical body. Despite Buti's initial despair that the building would be useless after Baba's passing, his Guru's final wish turned his project into a hallowed shrine. Chapter 39 emphasizes this by stating, "Blessed is the luck of Buti, in whose own house The body of Shri Sai rests." His great fortune was in having his personal offering of the mansion accepted in the most profound way possible, eternally linking his name with Sai Baba's Samadhi.