Why have different clubs

[Steel God]

The other clubs that support multiple era's want a more structured approach to gaming, rules, etc.

I am active, and have been since 2001 or 2002, in the Napoleonic Wargaming Club, which is 95% Tiller games.  We add some role play, training games, and army structure and our membership has a huge overlap with the Blitz. A large difference is that if you need technical support at tactics advice you know who to email and don't have to post on message boards...

Not being critical, honest question:  but if everyone is pretty much going to the same source for"tactics advice" isn't everyone pretty much developing the same way?  I mean, doctrine in a real army is the right way to go about it, but isn't posting on a board and getting 20 different POVs and allowing everyone to sift through and decide what suits them and what doesn't a better way to develop "gamers".  If everyone ends up playing the same way wouldn't that be a shame?