Another option is to build a PDP11 from the things you paid too much for on
eBay.  Take a look here:
        
http://cgi.ebay.com/aw-cgi/eBayISAPI.dll?ViewItem&item=1257207414
Someone just bid more than $500 for an RD52 with RSTS/E v9 on it.  No
computer, mind you -- just the disk.
Yikes!
-- Tony