For any of those interested, here is some info regarding the LV luggage -- an individual luggage piece can go for as little as $400-$500 and the most expensive piece is about $17,000.
And for some older info from Forbes: "Louis Vuitton can provide you a complete set of luggage in their trademark monogrammed canvas, including an armoire trunk, a wardrobe trunk, a steamer trunk, four matching suitcases, a hat box, a cruiser bag and a jewelry case. (10 piece set). Price: $60,140"

However, it doesn't look like Ayumi purchased from that set. As far as I can tell by the pics provided, she has the following -- Speedy Denim (it's the blue one on top that looks sorta like a Dior design from far away, fairly new); Malle Cabine trunk; Pegase; and the last suitcase that I can't ID.