If you need a fleet of heavy-duty trucks for your commercial operations, you should definitely consider purchasing used semitrucks. The following are six reasons to buy used semitrucks for your commercial needs.  You could acquire higher-quality equipment if you buy used. When it comes to commercial trucks, being able to afford higher-quality models that offer more power and efficiency can improve your bottom line. If you buy used, you could be able to acquire higher-quality models than you would have the budget to afford if you bought new ones.