High-profit margin sectors typically include those in the services industry, as there are fewer assets involved in production than an assembly line. Similarly, software or gaming companies may invest initially while developing a particular software/game and cash in big later by simply selling millions of copies with very few expenses. Operations-intensive businesses such as transportation, which may have to deal with fluctuating fuel prices, drivers’ perks and retention, and vehicle maintenance, usually have lower profit margins. Automobiles also have low-profit margins, as profits and sales are limited by intense competition, uncertain consumer demand, and high operational expenses involved in developing dealership networks and logistics.