Surging USD creates more profits for Minelab in the US, while falling € lowers the profits in Europe. One compensates another
€1700 for Excal is absurd. Completely absurd.
Companies are generally not in the habit of subsidizing the price of a product in one country, with the price in another.
A company expects a particular profit margin for a product, to satisfy its operating margins, and to provide satisfaction to its investors. That profit margin is considered inclusive of exchange rates. If for example a manufacturer offers a product for sale in a country where the exchange rate is 1:1 relative to the country of origin... and the exchange rate later drops, so that the currency in the country of sale is only worth half as much, the manufacturer needs to double the price of the object to maintain the same margin.
Companies are not charities. They don't typically subsidize the price of products against exchange rate variations.
If they did, they'd go out of business.
There are other price pressure factors at play too. One of which is the cost of labor in east-asian factories, which is steadily rising as the standard of living in those countries improves.
Economies are complex.
If you find the price of an excal absurd... don't buy one. When enough people don't but one.. the manufacturer will have to consider ways to reduce his margin, or his production costs, in order to make it cheaper so that you do buy one.
Free markets are kinda awesome that way.