I bought both Dracula versions. IMHO the DTS of the Superbit is worht the price premium. The additional encoding space also provided for fewer compression artifacts visible on really big screens (its was a moderate upgrade to be sure, but still a slight increase).
Now the bad news:
*No extras on either DVD.
*Transfer is actually worse than the Laserdisk! yes you get improved resolution with DVD, but the LD & DVD were obviously taken from different sources of different quality. The DVD tends to have some red "blooming" (such as in Draculas robes) that the LD didnt have, and contrast is better in dark scenes on the LD.
Of course theres always the rumour of a new 2-disk special edition with digitally restored picture and all the extras from the lasderdisk.... but the same rumour has been around since at least 1998.