I had a brief thought about micro-armour recently. Back 25 years ago, I was heavily involved with my local (as in Spokane WA) group's mini wars, and they played micro-armour. They did have a unique approach - collection campaigns. This entailed totaling up everything in your collection, and having a go at a campaign. Some of the guys had very substantial collections, and talk of starting another campaign signaled a round of purchases, hopefully to arrive before the campaign start date! Unfortunately, these campaigns usually did not last long; after a brief surge of interest, the logistics of the game weighed the 'gaming' part down, and the 'accounting' part rose to snuff the fun out. I never had much of a collection, but I always had some interesting stuff, like WW2 Russian cavalry or horse-drawn artillery... I do not remember what happened to my small micro-armour collection.
I don't think I would have fun painting or playing with micro-armour today (unless somebody else organized a game complete with minis, rules, terrain, etc). Despite some great techniques shown at the GHQ forums, I'm not sure I could keep any interest.
I like to keep thinking about Ancients in 28mm, but two items hinder this. One is the actual period to collect. I could just as easily play games with Egyptians vs. Hittites, Punic War battles, or Caesar's battles in Gaul as I could play with my current projects. It might not be a bad idea to keep this historical project's basing system as close to the Empire/Tékumel system as possible, just to simplify purchases and to, perhaps, indulge in a cross-genre game or three. My budget is the second hindrance - much progress in the other projects must be made first before diverting money into this. I'll find a way, just not any time soon...
Oh yeah, just in case anybody is interested, here is a shot of my work table:
It is a bit of a mess, but not so cluttered as times in the past.
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