After a few "iffy" purchases, I no longer would be a buyer like that - if seller is saying it is once fired - I want to see the original primer (plus maybe sealant) in the case. Same for tumbled and cleaned - on my own brass, I think fired 5 times and tumbled looks about like new. I have not see ads for 5 times or 8 times fired brass - all claim is once fired, but then as if effort made to disguise any contrary evidence. I have reloading tools - I am quite able to remove primers. I have a stainless steel pin tumbler - I am quite able to make them shiny, if that is important to me. And, as the buyer, I pay the postage cost to mail to me. Multiple previous fired brass is just not worth to me what previously once fired brass is worth.
About only possible exception that I can think of would be former military brass who's primer pocket has NOT been swaged - I do not know how to insert a new primer, without dealing with the crimp or staking.