Snarf Zagyg
Notorious Liquefactionist
I bet Beyond the Crystal Cave would be incredibly popular if it was re-released today, as it sits in a territory D&D has moved more and more into over time.
Good point; it's interesting, because while the U and and UK series of modules has gradually grown in esteem over time, I don't feel like UK1 (Beyond the Crystal Cave) ever received that critical re-evaluation.
If I ever had the time and druthers, maybe I'd do a re-read of all the classic modules and post on them.