What classic adventure module have you always wanted to run or play through, but you've never been able to?
GDQ. Possibly my holy grail of gaming - D3 was the first module I ever owned - and it's a tremendously important series to me. However, I've never managed to play or run any of it (save a very small amount of The Steading of the Hill Giant Chief)
What classic adventure module have you run or played through that turned out very different than it was "supposed to" or than you expected?
I'm going to give a surprising one here: Vecna Lives! This is an adventure that has been widely derided, and I didn't have great hopes for how it went; however, the Vecna thread was becoming important for my campaign, so I pulled this out.
And it worked really well. I didn't use the Co8 prologue, but the interaction with Iuz, Vecna and Kas made it into an epic and enjoyable game. Great fun. So, instead of being a mistake, it ended up being really great.
Cheers!