What do you get in a commercial Common Lisp implementation? « Metacircular thoughtsCommercial Common Lisp implementations like LispWorks and Allegro Common Lisp cost thousands of dollars. What do you get in them which isn’t included in SBCL or something, which costs $0? ACL has AllegroCache, a true object database which has ACID transactions and scales to billions of objects. It is used transparently and integrates seamlessly with CLOS, Common Lisp’s ridiculously powerful object
