The solution that has been tried for this for other markets was a program to buy back the old, still useful product significantly above market rate, fill it with concrete as to make it unusable. It helps if you say the old product was damaging everyone's lives in some way. Then the newly made products sell in greater numbers and at higher prices.
My Gossen Digisix from 2010 is still going, fits in a shirt pocket, very handy. Sometimes the battery contact gets a little loose and I have to reseat it. Thin plastic, wouldn't want to drop it, but never have. I recently acquired a Minolta Spotmeter which is a bit bigger and more featureful. I also have a Gossen Lunasix that doesn't see much use as its both bigger than and lesser-featured than the Digisix, although it does take a more common battery and could handle more abuse.