Am also looking for a laser AIO but the only available ones are the expensive high duty cycle ones. Then there's that problem you mentioned, supply issues with the toner.

CISS are not recommended by some of the guys here because of frequently having to clean the print head and issues with ink refills.

I think I might go back to cartridge type inkjet, the ones that have a print head on each cartridge. Haven't had an issue with this type of printer before. It seems some are cheaper to run vs even laser when it comes to cost per page.