Quite often, something cheap and plentiful in one industry is sold in small lots at high prices in another.
Fluoro optical fibre is expensive in short lengths in archery, as is grip cement which is heavy as and Limbsavers .
You can do the same and for much less with bulk fibreoptic rods, Polymorph and Sugru respectively. It’s a matter of looking outside the industry or combining hobbies.
I used it tonight.
This speaker wire is multistrand and takes to solder like desolder wick. It’s very easy to tin and solder.
This feature together with the higher melting point silicone sheath makes it very flexible and easy to work with.
I might stick with this stuff for a while.