[citation needed]

[lol]

Fusors are a standard neutron source, and they're fairly straightforward to build.

The idea that you could throw hydrogen ions at each other with enough energy to fuse is fairly obvious. It turns out that the obvious ways of doing so are orders of magnitude short of generating net power, but they do generate neutrons.

You must be new here.

Right, I've been duped into looking at the prices of things people actually buy, rather than their more expensive 1990 equivalents.

This is a standard definition of "regret" in an economics context.