For example: Mitutoyo seems to have a monopoly on producing accurate digital calipers that have battery life measured in years (using one dainty little LR44 alkaline cell). They use approximately fuck-all for power whether switched on or off.
Certainly, the market is open for others to produce an actually-competitive product with similar performance. All it takes is for the competition figure out how to do it and put them into production, since any necessary patents expired long ago.
But they simply have not done so.
So here we are today, wherein: The free market has decided that Mitutoyo has a defacto monopoly on tools of this capability.
Is that... is that implicitly a problem, somehow?