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arcosapphire t1_iszfro3 wrote

> When I lived in London in the 1990s, there was a very cheap European coin, which was very similar to a one pound coin. It was used a lot in the ticket machines on the London Underground. And that did cost LU a lot of money.

Sure, if it's very cheap, I can believe it's worth doing. Especially since people may often make ten Underground trips a week.

Right now, the CAD is 0.73 USD which is unusually low--it may be worth it now (although who uses cash anymore?). But ten years ago they were on par. For a bit CAD was actually worth 1.01 USD! So, the particular year matters quite a bit. A lot of the time, it wouldn't have been worth doing.

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