Lets say that ActivingMining ends up not selling as many units as one would like. Couldn't Actm just use those unsold units to mine? It seems like a focus on selling units is short sighted if you actually trust that Actm will produce units that will exceed ROI.
They take pre-orders, there is no such thing as unsold units.
Would it make sense for Actm to order units itself?
That is part of the plan:
ActiveMining is the natural evolution of two previous projects: Active Mining Cooperative (creating a bitcoin mining farm) and Virtual Mining Corporation (selling bitcoin mining hardware), that are now unified under the roof of ActiveMining.
AMC will be mining with cost-price units manufactured by their
subsidiary VMC.