The phrase "are valued at" refers to an assessment of something's worth or estimated price. If we look for antonyms to this phrase, we can consider terms like "are undervalued," "are underestimated," or "are worthless." When something is undervalued, it means that it is priced lower than its actual market value. Similarly, if something is underestimated, it indicates that its worth is being ignored or not given enough importance. Finally, when something is deemed "worthless," it implies that it has no value or is completely useless. In contrast to being valued at something, these antonyms suggest that something is not deserving of a high price or worth.