Racearth's unique selling propositions, such as low tax, readiness of the racing game, and transparency measures including KYC, Audit, and Doxxed, are noteworthy. These elements, combined with the team's marketing efforts like the live billboards and press release, may help to generate buzz and build trust among the potential user base and investors. It's worth monitoring how these factors will contribute to Racearth's growth and success in the competitive world of blockchain gaming.