Crystal reports is fairly new to me. It's usually the COBOL and PL/1 that people give me strange looks about. Both of those programming languages are older than I am. There are still quite a few businesses that use them I guess. The old "if it ain't broke, don't fix it" theory I guess.
Although one of my co-workers said that he knew a guy that made a pretty good living traveling around the country converting old COBOL programs into new languages. The average age of programmers that have even heard of it much less are able to code it is getting higher and higher. At my last job I was mid-30s and one of the youngest ones there.