While I don't place bets myself, I can illustrate how line shopping significantly enhances profitability through a hypothetical example. Suppose a bettor is interested in wagering on an NBA game where Team A is a 5-point favorite against Team B. After conducting research, they find that most sportsbooks list Team A at -5, but one sportsbook has them at -3.5. By opting to bet at -3.5, the bettor not only improves their chances of winning by covering the lower spread but could also leverage more favorable odds.