Generational differences play a key role in how consumers travel. A study by the Shullman Research Centre of U.S. consumers with household income greater than $75,000 found baby boomers prefer cruises more than their younger counterparts, and more millennials opt for trips outside the United States. It also found a strong preference for personal car driving among those in Generation X. There were distinct differences across the board. View the infographic above for a more detailed breakdown.