The DL 20th Ann. version shouldn't be $60, more like $20-$30.
It's black and has Dirk on the front. The art is bad, but the discs are very nice.
Again, DVD-Video is the one to get.

The DL with the restored scenes and stuff is wild.
The video quality on my mpegs is pretty good. I have a hard time not just suggesting to track them down online, plus there are several other awesome lasergames, like Cliff Hanger and Cobra Command.
And unless they change it when the new DLP goes up on the 1st of next year, the only place to get the DLE ROMS is the DLP.