Any way to batch downloading?

[Petie]

That seems to be the basis behind most of the suggestions for this feature and I always counter it the same way - is there some reason you can't use the site itself for said archive/reference? The site isn't going anywhere so it's not like you'll be losing access to anything (and it's much more convenient and space-deficient on your end to just grab what you need when you need it). Is there some benefit you see to having a local copy of everything?