Gotcha. Yeah, I misread your comment then. I thought you were suggesting that innovation here is stalled because the likes of abbott aren't incentivized to build it. My point was mostly that I don't think that's the case since there are other pretty large companies who would benefit from bringing a non-invasive monitor to market.
IDK that it's really possible to get accurate glucose measurements without at least a little bit of invasiveness. I don't even think the lifespan of the current CGMs are being artificially shortened. I do think they are overpriced. But my understanding of how they work (silver coating on the spike generates a voltage) it makes sense that they have a limited lifespan.
The telling part, to me, that they are overpriced is that finger stick glucose monitors come out to roughly the same cost per month because of test strips are really expensive. The fact the both manufacturers have identical pricing is also pretty suspicious.