erc-677.com is valuable because it could represent a specialized topic in cryptocurrencies, specifically referring to a type of Ethereum Request for Comment—ERC-677, which elaborates on token transfers and functionality. It’s an appealing domain for tech companies, startups, or educational platforms focused on blockchain technology. The '.com' TLD enhances its credibility and global appeal, making it highly desirable in the tech and financial sectors where Ethereum and blockchain are pertinent.