There are several common reasons for renting a car long term:
Taking an extended trip or heading to a secondary residence for the season. Renting a car for the duration of your trip prevents you from having to put mileage on your personal vehicle and reduces wear and tear.
Working on a large, one-time project that requires a truck or van. Renting a vehicle by the month as needed is a great option.
Needing transportation while your car is in the shop. Whether you've had an accident or have a major repair on your personal car, a long-term car rental is a great way to get back on the road without missing a beat.