i think most of us that commute get this once in a while. in the winter i get it even more, as i'm still out when the weather has turned to cr@p.
i've got a car. nothing fancy, but it's paid for, and my insurance is cheap. 30-36mpg, so it's fairly good in that respect. an older 1994 mazda protege dx. transports big stuff, and takes me on road trips.
my coworkers and neighbors think i'm nuts, becuase i still bike to work, and do the majority of errands and shopping by bike. you've got the car, why not drive it......
worse, i get comments when i'm IN the car as to why i don't buy a new one. WTF? why would i want to? it gets great mileage, is paid for, has cheap insurance, and so long as i maintain it well should last me quite a long time. why would i want to go and have a car payment and higher premiums again? oh, yeha, that's right. so i can be driving a "new" car to keep up with the jones family.......
and as for buying a car, buying brand new is just stupid, IMO. sooooo much more car for your money going used vs. new.