They are worth a lot more with a nice keyboard included it seems. I sold one with a bum floppy drive and no accessories a while back for about $10.00 just to keep it out of the recylcer, and to be honest I was lucky to get that.
I just paid $50.00 for a nice one (closet stored for 20 years) with all the original disks from (KS/WB 1.0 through 1.3.x) manual, nice keyboard, correct angle plug mouse, ect. I think I did alright.
Not too long ago a nice clean stock complete 1000 went for well over $100.00 on ebay, so you never know.
Jeff