That was also the first thing I thought of as a kind of ideal isolated and temporary test-flight. But imo taler wouldn't really have any benefit over cash in this scenario. (at least for the customers) I think the strengths lie in the ease of use for small shops (on- or offline) like (niche) hobby shops, hobby farmers, artists, FOSS Developers, etc. Bigger players would probably see adoption when there is an official exchange (lets say ECB would give out "digital eurotaler") because that would mean way lower transaction costs for them.