Sure, but that does not have to be at an expensive conference. I have a spare bed room (will be furnished soonish) that could host a traveling geek, ala, Paul Erdos.
What's an expensive conference? The euruko for example is at around 50(?) and used to hover at 20 Euros. Lots of smaller conferences are popping up at that price point - single track, one or two days, no fancy catering, just a focus point where more than one person will show up and gather around a topic.
Until technology can replicate that, I think conferences won't go away.
Until technology can replicate that, I think conferences won't go away.