Newsgroups: comp.lang.scheme
Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!sdd.hp.com!think.com!snorkelwacker.mit.edu!bloom-beacon!dont-send-mail-to-path-lines
From: cmaeda@exxon-valdez.ft.cs.cmu.EDU (Christopher Maeda)
Subject: Lisp under $10k
Message-ID: <9105061407.aa00403@mc.lcs.mit.edu>
Sender: daemon@athena.mit.edu (Mr Background)
Reply-To: cmaeda@cs.cmu.edu
Organization: The Internet
References: <11764.9105031405@subnode.aiai.ed.ac.uk>
Date: 6 May 91 17:10:01 GMT
Lines: 4

For $3.2k (edu price) or $5k (list price) you can get a NeXTstation.
It runs Mach2.0/4.3BSD at around 11 specmarks.  Allegro CL is $750
(edu) or $1500 (list).  Various flavors of scheme are free.