I dunno. People these days seem so unwilling just to use their imagination.

Availability has probably been OG's greatest friend. Not suprisingly, it's main market has been the old Estados Unidos. The OG Army thang probably does make things cheaper there but does kind of lock folk into buying more of the same crap to realise the er... 'value'. OG: The Costco of wargaming.
Once you add overseas shipping any impulse towards the cheap and cheerful rapidly dissipates. Having found no suitable alternatives I contemplated buying OG's mounted US cavalry from their Pershing Expedition range for a while, as it's one of their better ranges and well there are no commercially available alternatives. Shipping costs rapidly burst that balloon.