3mm is so much cheaper. Here in the US one can get them from John at Picoarmor. One gets 15 miniatures for $4.25 US. It is so much more cost affective then 6mm.
I know i just wrote Marcin from Oddzial since he is from nearer, ordered 30 Abrams,some strykers, infantry as well as their Chinese counterparts with ZTZ-99As and ZBD-04 i also have some Mi-17s which i can use with PLA