Hmmm I really never did NW regimenting, just too many people pushing around.
But, if you wanted to go on BC/N&S now, could you go on the mod now and spend some quality playing time off events? Not really. In the end, it's the strong public play and the never-ending influx of players(of arguable age...) that keeps it alive over and over and over for new regiments and those 100+ men ones.