Many kitchens look dated not because the entire cabinet system is failing, but because the doors, color, and surface finish feel old. That is why many homeowners compare refacing with full replacement.
When refacing is the smarter value
If the cabinet boxes are stable, the sizing works, and storage is mostly acceptable, refacing can be a very smart way to improve the look and feel.
When full replacement makes more sense
If the cabinet boxes are aging or distorted, or the layout simply no longer fits how the kitchen is used, full replacement is usually more complete.
Do not judge only by surface-level price
The better question is whether the money improves appearance, function, and long-term usability at the same time.