Your right, we have much better standard in HDMI, because every laptop has that now. Oh wait, except the Macbook Air which has display port. So HDMI and displayport, oh wait, USB type C. So that's it just three connections to replace VGA.

Oh, forgot about iPads, 2 different ones for that, and android phones at least 2 MHL connectors and whatever google does in their phones. We haven't even got onto mini and micro HDMI.

At least 10 different connectors on recent devices then? Don't you just love standards?

I dunno. In my personal experience having worked with a lot of projectors, televisions, monitors I find HDMI to be an incredibly buggy experience. VGA always just works. The only problem of VGA (and other newer digital standards) when compared to HDMI is the lack of audio support, and also i guess VGA support is declining compared to HDMI.

I think guests should graciously work with whatever hosts provide, as long as it works.

The thing is, it doesn't. It requires the device to be able to do a Digital to Analog conversion. In modern graphics chipsets, that capability is only needed for legacy compatibility with CRTs and old projectors. If you speak VGA to a projector or any flat panel monitor, you're really just feeding an Analog to Digital converter. It's nuts.

VGA has lower quality at high resolutions than something like DVI, DisplayPort, or HDMI. Then again, if the place still has a VGA connector, it's unlikely the projector is high-resolution.

Yes. So as a guest do you make the best of it or whine that there are better things available?

Being a good host is also kind of a thing, FYI, and part of that is going to the effort of making life nice for your guest.

If you're going to harp on hospitality, please remember it cuts both ways.

This is the rudest politeness advice I've ever seen. Props!