And a strong currency usually means weak manufacturing. And I don't know how a country can be strong without a solid manufacturing sector. Like, when we a war breaks out, we ask our enemies to sell us components and medical key ingredients?
Didn't know Switzerland was a "weak" manufacturer (currently one of the strongest currencies there is, also in wide use).
If you aren't self-sufficient in energy, food, and to a lesser extent raw materials, a weak currency means everything is expensive.