Rolf Potts shares his perspective in an unconventional book, which I've included one of my favourite passages.
This notion - that material investment is somehow more important to life than personal investment - is exactly what leads so many of us to believe we could never afford to go vagabonding. The more our life options get paraded around consumer options, the more we forget that there's a difference between the two. Thus, having convinced ourselves that buying things is the only way to play an active role in the world, we fatalistically conclude that we'll never be rich enough to purchase a long-term travel experience. - Vagabonding: An Uncommon Guide to the Art of Long-Term World Travel
Travel is a big part of education in learning to be classy, but most people disregard it because they think they cannot afford to travel. This book shows us how affordable travel can be.