You should. I've read quite a bit about Blade Runner... the workprint is the one we all wanted to see and it's on the 5-disc edition.
But if there is a long assembly cut: mesa wanna see. But I need proof of that, and exlcude the possibility that we're talking about a non-existent version that fans wanna make with all the deleted scenes cut it.
So has mine... But I had bought the 5-disc version of the Final Cut already on DVD before I got the Blu Ray. However, the 5-disc version does exist on Blu Ray now, but unfortunately not in our neck of the woods:
http://www.amazon.com/Runner-Five-Disc-Complete-Collectors-Blu-ray/dp/B000UBMWG4/ref=sr_1_1?ie=UTF8&s=dvd&qid=1269504589&sr=8-1
or the drule edition:
http://www.amazon.com/Runner-Five-Disc-Ultimate-Collectors-Blu-ray/dp/B000R6PKP2/ref=sr_1_2?ie=UTF8&s=dvd&qid=1269504688&sr=8-2
And if you're okay with a DVD addition (this is the one I have, pre-blu ray):
http://www.amazon.co.uk/Blade-Runner-Ultimate-Collectors-Cardboard/dp/B000ZP20M6/ref=sr_1_5?ie=UTF8&s=dvd&qid=1269504728&sr=8-5
Now these five disc editions include ALL previous versions: the theatrical, the work print, the 1991 Director's Cut and of course the Final Cut and all the documentaries you have on the two disc edition.