I found the tone of that website a bit offensive. After I bought it, it said something like "if your family or friends would like to read these books, tell them to buy them".

Wtf?! After I just paid, you're telling me to not do what I'd to with a physical book? (lend it)

You don't have a physical book. You bought a license to legally own a duplicate of information. You didn't buy a physical product, or you would have the legal capacity to modify or recreate your product for non-commercial reasons. You don't have the right to redistribute it or duplicate it, so they are complaining about it.

It isn't that much their fault either, since it is inherent human nature and culture to share, and having grotesque IP laws that conflict with what your perceived normalcy is can potentially damage profits!

[edited away] Edit: I lied about the 30% fixed. I had JavaScript disabled and the sliders didn't show up.

They have this on their page: "Zero DRM. There's no DRM on any of our books. None. Why? For one, we don't believe DRM actually stops people from sharing what they want to share."

I actually find storybundle a much more intriguing project, whereas Humble is it's usual "Hipster" self - e.g. stuff I've already heard about, stuff that has a fair amount of promotion behind it in there first place.

With books, mostly unlike with video games, curation is an actual value-add: there's absolutely no way any one person could keep on top of all the new book releases.

The Humble stuff is largely from a certain clique of writers, a little monoculture in a way. I like the stuff, but I'd also like to see a little more diversity. Even if it's all contemporary sci-fi there's a lot more to choose from than the small group represented here.

If you want diversity, Leanpub authors can create their own bundles of Leanpub books (both their own and of other authors). Here's an example of what one of these looks like: https://leanpub.com/b/node

Of course, we're currently a bit of a monoculture too: mostly programming books, since our early adopters are largely programmers. But that will change as we grow, hopefully...

The Humble stuff is also their first book offering, so maybe in the future they will choose book bundles more broadly.

So it's hipster because you've heard of it? That's some self incrimination right there.

Hipster in the reddit groupthinky sense.