We can add hire car companies to that list because if they don't buy them they won't appear in quantity on the used market.
Hire car companies are undeniably an unbiased large scale experiment in the economics of EV's as they are only interested in the bottom line.
Hertz have been stung on their fleet of 35,000 Tesla's due to falling used values and that's understandable after Tesla slashed the retail prices. The more interesting fact is that they reported Tesla's cost double to repair compared to similar IC cars. I'm reading that as mostly accident repairs rather than reliability/maintenance. As a result Hertz are drastically cutting back on the size of their intended EV purchases.
I suppose the higher than expected depreciation could be considered a one off but the double cost of repair will have to be addressed if fleets are going to buy them.
Hertz pulls back on EV plans citing Tesla price cuts, high repair costs