Don't think so or every part they sell has the potential to cause the next Chernobyl disaster.
Ha. Pricing on non-RoHS components isn't related to their "danger" to the environment. It's because all the major fabrication houses converted to the "greener" standards and they no longer produce the older parts.
There's a robust "no longer manufactured" electronic parts business with terms last "last run, last time purchase" where warehouses stock up on popular parts whenever technology changes and chip and component manufacturers end-of-life a chip or series of them.
If Honeywell / BK is having to order parts from an ever dwindling supply in a warehouse somewhere to fulfill repair orders, they'll raise the price of repair parts higher and higher to cover costs.
Garmin is no different. Their early GPS devices are still just fine, design-wise... other than mis-judging how much memory would be required to hold all the waypoints being created out of thin air. You'll just find that components to repair them slowly dry up.
Having seen a number of otherwise perfectly viable and very expensive telecom systems EOLed instead of paying hardware engineers to re-design them with RoHS components and manufacturing techniques, I suspect Avionics manufacturers are now feeling the end of that long-tail of increasing prices on repair parts on any design created prior to RoHS.
There was much weeping and gnashing of teeth in telecom when manufacturers started saying, "We no longer make that replacement card for that unit, and we warned your service contract and purchasing people, as well as your Operations people, of the upcoming EOL and End-of-Service dates seven years ago." Service providers assumed that huge deployed bases of units would trump that warning. "We spend $4 million a year on our service contract! Fix it. Now!"
They were surprised to hear, "We would spend twice as much money fixing it as we would make from all of our service contracts combined. It's dead. We warned you. Good luck finding parts on the used market. Service contracts no longer cover hardware."
