I think they're great for study and as art, but I don't really aspire to write programs like that. In fact most of the time I don't aspire to write anything at

I think they're great for study and as art, but I don't really aspire to write programs like that. In fact most of the time I don't aspire to write anything at all. If I need a feature my first thought is "Does an existing project want this added or a plugin that does it, it does something already have it that just needs cleanup and bugfixes?" I might not always need the industrial strength equivalent, but analyzing whether I do or not takes time, and using the "just enough" approach can create fragmentation and require learning a new tool for every project, instead of focusing on one that you trust will be maintained for a while. I do value performance, but sometimes optimization gives better performance than simplicity.