Even if one were to recreate the events, I feel lots of the activities of these meetings (meeting the selected few gamers face-to-face, sharing media, and only finally gaming) are somewhat obsolete or not needed anymore.
Part of me wishes we still had these but that would mean removing lots of improvements and putting up barriers to entry to computers, games and the Internet.
Dunno, I might be rambling but perhaps one should just be happy to have been part of that scene back then and move on?
For me, the closest I got to that has been participating to hackathons (although many misses) even though those tend to be more stressful than the LAN parties.