I'm pretty sure an Exocet would cost a bit more than $10K. I don't think you can get a GPS guidance package for a dumb iron bomb for that much.
You are correct. They cost $75,000 each in 1980’s dollars and sell today for $250,000. I knew they were Cheap, but missed that mark. Still. You cannot build any kind of destroyer battelship or carrier for a micro fraction of the cost of a cheap missile. And the Exocet was first designed in 1967. I don’t think they had GPS in the 70s, which were the versions used by Argentina in the Falklands war.