So true, voting with your wallet (for myriad of practical reasons) isn't always possible. And sometimes you/spouse/friend/whoever will often say "how bad can it be"! And often we ourselves wonder "Ah! I can get used to it".
You can when buying a car though? Like, if this car sucks, buy a different car.
There are a thousand things to consider when buying a car and maybe the interface sucks but you are more concerned about MPGs. I feel like that was a pretty easy thing to consider.