Count Temple biology chair Joel Sheffield among the former. It shortens the time between submission of a paper and its public distribution.
Access is easy.
It doesn't take up space in a library. And in a time when the pace of scientific research is very rapid, this is a way of getting information out quickly and in great detail. The costs are eating away at our acquisition capacities in the social sciences and humanities. And bound journals take up a lot of space. Drawbacks include the issue of technological obsolescence and possible economic effects on publishers and printers, but these can be worked out, according to Sheffield, and ultimately scientists would have access to much more information at far less cost than they do now.