Apparently my mother in law used to have a civic with keyless entry
They found out one time at the mall that they could each open the other's car.
I bet there's not nearly enough uniqueness and security in these things.
I think yo' momma [in law] is full of shit.
What I'm saying is this: You cannot claim that because some unbeknown factor will cause irrationality within the market, that the market is now irrational. Rationale in marketing is implicitly based on the irrationality of our purchases - there are huge, successful companies that, when taken a step back and looked at with a grain of salt, do not represent any real form of reasoning. Marketing, in and of itself, as a huge factor in economics and "the market," is inherently irrational and meant to appeal to the senses.
No. We are talking about the rationality of the market itself, and not necessarily about just the individual actors.
This is where your argument falls apart. You are begging the question.