Do I really need a bike rack?
A proper bicycle rack is worth it even if only for the peace of mind they provide. Since most bicycle racks are also very affordable there is no need to put your equipment at risk in order to save some money. In the long run a rack will simply work out better for both your bike and vehicle.
Is a hitch bike rack worth it?
Although more expensive than trunk-mounted racks ($150 to more than $500), hitch racks are a great option for frequent users—especially for those needing to carry more than three bikes. Hitch racks are typically designed to haul two to five bikes.