The term "more dirt-cheap" is an example of a comparative expression, indicating that something is even more inexpensive or affordable than the already cheap thing. However, there are several antonyms that can be used to describe the opposite of cheap or low-priced. Some words that are antonyms of "more dirt-cheap" are costly, expensive, exorbitant, high-priced, lavish, luxury, and upscale. While there are times when cheap prices can be beneficial, there are certainly times when quality should be prioritized over price. In such cases, opting for a pricier, but high-quality product can often yield better results in the long run.