Hi Kieran
if things could be sold much cheaper, and make a profit, use a little of the money from your flying to invest in budget flight planning kit, and watch the PPL students beat a path to your door.
You will (in the process) discover the difference in tooling/production costs of runs of a few thousand as opposed to millions of units, and your bank manager/investors will explain what return on investment means.
Do you see Bob Pooley (or his competitors) owing business jets, and having megayachts tied up at Monaco?