I believe those prices reflect sealed vs. unsealed copies.Also,there were two box versions for MFSL,a regular box and what was called a "long box".I am not sure if DSOTM was available in the long box version,but I believe that is why you are deeing such great price fluctuations.keep your eyes on ebay,there are always copies there and sometimes you can get a good deal.I picked up alot of MFSL stuff on ebay and have picked them up at relatively reasonable prices.As for the bootlegs,I have not heard of any,but in this day and age anything is posible.Do not hesitate to pick up this disc as it is an awesome recording.
Enjoy
Dave
Enjoy
Dave