As the cryptocurrency market matures, investors are finding different values and uses for different digital currencies. Bitcoin (CRYPTO: BTC) is seen as "digital gold," Ethereum (CRYPTO: ETH) is the leading smart-contract crypto, and Solana (CRYPTO: SOL) is the fast, low-cost cryptocurrency. Despite being smaller by market cap, Solana has a rich ecosystem of applications and non-fungible tokens (NFTs) being developed and real-world utility being added. And the recently announced Solana Pay pr...