Master bedroom closets are no longer just a place to hang your clothes; they're another room in your house. While wire frame closet organizers are less expensive, solid wood organizers - complete with shelves, drawers, and molding - are must-haves for a truly luxury closet. (I used wire myself as I don't plan to parade people around to see my closet, but for luxury resale and if you just want to indulge, go solid wood.)
Cherry, of course, is the most opulent as shown in the picture here. But you can also get any other wood, including white. Most areas will have custom closet retailers so you can design and create the closet of your dreams. In the Chicago area, a builders' favorite is Closet Works.
A good site for helping you design and organize your closet is Closet Maid. Although they appear to have wire systems only, you'll find loads of reference and planning material here.
If your wardrobe deserves the very best, plan a luxury closet.