Not just that... but that is part. Also the scans from ADB seem to be top notch work. $10 is right about right for OOP core books, tho I'd much prefer $5... and it's the same price point as for their other OOP games (sfb de, fs).
It's my favorite Trek rule set. I've all the books in dead tree, except the post-18 CL issues. OCR PDF is just easier to use than the dead tree.