Yes it has ongoing cost. No we shouldn't pay to access public research. Not JSTOR, not anyone. Have you checked how much for say a research paper from just 10 years ago ? how's 30 dollars for you ? So you are suggesting it would be even more expensive if it wasn't for partial public funding ?
Then perhaps they are doing a shit job and don't belong, don't deserve to make any money or to function.
Mega upload did a better job hosting data that they are doing. Ditto for wikipedia. For categorizing it there's the community which should be more than enough given that it's the same with or without JSTOR.
Yeah with some peer review and either ad supported, state supported or community supported. Simple fee is too much for something I already paid for. I think paying 5 cents for the bandwidth is perhaps all it could and should ever cost.