Yer ne'er had it so good! why, in my day we had no option but to do head and torso swaps with soft poly Airfix figures .... and it ne'er did me any harm! :-)
I'm pretty sure that 3D files will quickly consolidate the 'main topics' for the faster money and then as the market matures, figure diversity will become significantly supported. In 2008 Perry Miniatures took us into Hard plastic historicals and all the pundits thought that was going nowhere. Five years later the technology was much more embedded and cheaper. Now, 14 years on, considering the print runs and volume sales needed to break even on a single £15K - £20K sprue, there is massive company support, touching most of the popular periods. Now you have Victrix going to 12mm and Warlord Games 13.5mm, for the 3D designers / suppliers, it's Open Season.