A new sustainability model for Open Access

PeerJ is a new proposal in the world of the scientific journals with Open Access licenses. They write:

First, the tax payers deserve free access to research they've paid for. "They won't understand it" is not a valid excuse. Neither is calling Open Access an unsustainable model.
Second, the research community greatly benefits from unencumbered access to the research. And it helps the individual authors rapidly gain credit and revise their work. PeerJ is striving to make research a living process, not a set in stone PDF.

This philosophy is very good and resume all critical points in the OA model proposed by the great publishers. And it seems that this new model will be applied:

PeerJ is establishing a new sustainability model. Researchers will be able to purchase Lifetime Memberships, starting at just $99, giving them the rights to publish their articles in our peer reviewed journal. All published articles are made freely available to the public. Subscription fees made sense in a pre-Internet world, but now they just slow the progress of science. It's time to change that.

In this way each researchers, also in Africa, for example, can afford to support Open Access.
I hope that this is not a dream.

Thanks to OggiScienza.