Similar to gold. Eretheum Classic is mined and is intended to be a store of value. While there are projects using Eretheum Classic as their foundation. Their volume will necessarily be limited by the fact Eretheum Classic has set a limit of 230 million tokens.
The leaders of Eretheum Classic believe its value is enhanced by imposing this supply restriction. Because it makes each individual token rarer and therefore more valuable. Especially when the total supply of 230 million tokens is fully mined.