If simplicity is the ultimate sophistication as Leonardo Da Vinci once said, then to achieve such a status one ought to just fit all their belongings in a bag. It makes perfect sense, really. Anything more than a bag (or two) bogs you down. Bags, or luggage, allow you to pick up and go. Everything in a suitcase provides you the luxurious convenience to see the world. To become possibly more cultured than you were at your last stop. And let's face it. What's the basic essence of being a true sophisticate? A worldly presence. It starts with the bag. So dress it up as the part.
"Travel is fatal to prejudice, bigotry, and narrow-mindedness, and many of our people need it sorely on these accounts. Broad, wholesome, charitable views of men and things cannot be acquired by vegetating in one little corner of the Earth all one's lifetime."--Mark Twain