Wealthy travelers have become obsessed with Rimowa's sleek aluminum luggage, which starts at $1,430.Brittany Chang/Business InsiderRimowa is best known for its sleek aluminum luggage that starts at $1,430.The suitcase maker is one of LVMH's fastest-growing brands.BI spoke to four Rimowa buyers who said they love the luggage's wheels, look, and durability.HBO's hit TV series "Entourage" has had a big influence on John Baptist's life.The show ended in 2011.