One problem with infrastructure technology (programming languages, databases, IDEs, etc) is that all of the above is expected to be available for free by developers. So there is little incentive to develop a business around infrastructure technology. Sure people still do it, but not like the 80s when people still paid for PLs, IDEs, databases,etc. These markets have been drastically devalued by open source.
http://fantom.org/doc/docLang/DateTime.html