Autotrader.com surveyed 432 random visitors to their site and found - surprise! - some trends that are a direct consequence of high gas prices: 73 percent of these visitors said that high gas prices will impact their summer driving, causing them to drive less. According to Autotrader, that means that Americans will seek vacation and recreation options closer to home, which of course will affect the tourist industry. They will use more mass transit options for commuting to work, which will affect current public transport systems. Finally, this means that they will cut back on shopping and seek out for one-stop shopping, which will affect retail. Surpsring? No, but it shows the wide impact that $4/gallons of gas.