Being a working one myself, I find that using materials that are readily available for most builds is the most noble way to go. That is why I use wood and stone in many of my builds... and make a point to mine clay instead of stone if possible, to get brick and roof tile material. But /admin is a great tool for builders that don't have the time to gather all the resources needed. I treat it as once I get a good amount of blocks, I'll just keep them duplicated to build with... rather than looking for more dungeons to destroy. I want to be a creator, not a destroyer. Therefor, I will take samples, and build my own cities... not destroy anyone else.