I found Haskell

I found the typing system in Haskell sometimes got in the way. Likewise, although Haskell has some capacity to define new language constructs, Lisp's macros are more powerful, and this provides a further degree of flexibility. I also find Haskell to be harder to read than lisp, largely because of built-in syntax and lazy evaluation. I also seem to recall haskell being pretty slow. Lisp on the other hand can be as fast or faster than C. Furthermore, with good unit testing, the sorts of errors one would catch in haskell, also get caught early on in lisp.

Lisp machines also suffer from endianness problems, as there are two obvious ways to encode Lisp code. One is to encode ( as 0 and ) as 1 (big endian), and the other one is to encode ( as 1 and ) as 0 (little endian). This confusion and the resulting incompatibility among the various Lisp machines vendors greatly participated in the decline of Lisp machines; but the developers were much too busy to notice at that time as they were arguing much more important things, such as getting a new name for bytevector.