Ikea will sell you an induction cooktop for about 300 Euros. The price scales pretty well from 220-850 Euros depending on the size and number of burners. Prices should come down once the US catches up to the rest of the global market.

https://www.ikea.com/ie/en/cat/induction-hobs-20813/

Yeah, the low cost basis and high markup is my gripe. If there were $1500 worth of specialty parts in there, I wouldn't be complaining. But appliance sellers have gotten really good at equating "physically big" to "high priced". As for the US "catching up", well, about that...