One reason we decided (upon my suggestion) to play a classic 2nd Ed. AD&D tabletop game was the nostalgia of taking a system that wasn’t particularly balanced and doing something epic with it. Having zero desire to play a tabletop MMO after D&D 4 was unloaded, I was recently introduced to Pathfinder, aka D&D 3.75 (or 5.0 to those who want to truly forget 4th edition was ever backbirthed.)
This past weekend (after a two-week hiatus), we pushed the rest button and the characters all changed, some for the better and some for worse. But overall, I was very happy with changeover and a good game was had by all (even in spite of my PC-loving GM dice.)
We’re also heavily using Illithid (mind flayers) and psionics in general (part of the overall plot design), so that part has been challenging but has also created some interesting opportunities. So if you start to notice a few differences in how the PCs are getting stuff accomplished, now you know why.