Does my outlook not resonate with you/other older employees?
The cover letter seems to have fallen out of fashion, but I find a couple paragraphs of prose far more revealing about a person's abilities than a resume. Of course it's also more work to craft one for every position you're interested in, and doesn't help much if you're looking to put yourself into a database for recruiters (e.g. LinkedIn or any other job site), where they force you to iterate your experience in chronological order and list technologies with no context.
I think it's important to leave off things you're not interested in. I did Perl for years but there is no amount of money that would get me to do it again, so I minimize or eliminate its presence on my resume, and put extra emphasis on the technologies I want to work with now.