I'm not sure that I agree with your assertion that 18-49 year old males
are only interested in seeing other 18-49 year old males digging for
vintage hardware.
Classic computing geeks and nerds like myself (who would be happily
wearing his "nerd" t-shirt from the first VCF east) would be interested
but the rest of that demographic would probably point and laugh because
they just don't understand...
Cheers,
Bryan