Generally, it is cheaper and quicker to repair kitchen cabinets. You can opt for repairs if you are dealing with minor issues and are interested in cosmetic updates that can be achieved with refinishing or refacing your cabinet fronts. Additionally, fixing cabinets is less disruptive overall.
While replacing kitchen cabinets is more expensive and time-consuming, new kitchen cabinet installation allows for a complete transformation of your kitchen.
Let the condition of your existing cabinets, your overall goals for your kitchen and your budget guide you in your decision.