Matchstick Armies

The Old Dessauer has done a great job again of expanding on the posting regarding his matchstick troops.

I go into this subject as I have played in a fun re-fight of Minden, where some 12mm? 10mm? and 15mm miniatures were used to great effect.

It got me again thinking of the mass battles effect that can be had with such forces.

Moreover the cost factor is really good.

What are your thoughts about such quick use armies?