Very true. A good deal on something bad is not really a good deal. But it is also true that "freely available" is nto the same as "worth nothing" and some of

Very true. A good deal on something bad is not really a good deal. But it is also true that "freely available" is nto the same as "worth nothing" and some of the works here, at least, are well worth the study (to their intended audience), I believe.