They do still sell all of their books - just not directly on their website.
Whenever possible, they're sold without DRM.
Whenever possible, they're sold without DRM.
Now you have to hope something g you're interested in ends up in a Humble Bundle or something. The situation is worse in every way for a end users.
They can't have even lost money if people were just claiming to own books to get the cheap price. Their marginal cost for the PDFs was effectively zero so at $5 they were making plenty of money on them. At the time a PDF only copy of their books was about $10.