Depending on what kind of computer you use, this was a problem as recently as a year or two ago. The vendors who support the Lisp marketplace tend to have been around for a long time and have good reputations. As desktop computers increase in speed and storage capacity, Lisp vendors are increasingly turning their attention to these platforms. Appendix B of this book lists not only the current players in the field, but also their corporate lineage. This book may not be reproduced without the written consent of its author.
Online distribution is restricted to the author's site.