I'm not sure where you're from, but I don't know anyone who doesn't have literally dozens of VGA monitors they can't figure out how to get rid of. Even modern this-year Dell monitors still come with VGA, and I've never even seen a modern TV without RCA plugs.
Is their a Goodwill or Salvation Army store around you? Check it out, see what their electronics section looks like. That's the target market.
Many modern monitors might have VGA still, (none I've seen recently do) but almost all lack the ability to handle the 15khz horizontal that much vintage computer tech uses.
True, VGA being an analog interface was perfect for CRT-based monitors. Many modern LCD monitors still have it, not sure about the image quality though.
VGA is still pretty adequate. The main limitation is that if you hook up a VGA monitor, you can't watch most proprietary video, whether it be disc or streaming, because they need a more sophisticated connector for their DRM schemes. VGA cables have no real difficulty with 1080p or some even higher resolutions.
Is their a Goodwill or Salvation Army store around you? Check it out, see what their electronics section looks like. That's the target market.