Then TSBs should not expire. They should be performed on the truck no matter what the age/mileage-- because they are design flaws. They should be tied to the VIN # and performed once on the truck.
The fact is, Toyota doesn't fix recurring problems. Sloppy steering columns and weak rear suspension are two examples that show up on different models year after year (actually decade after decade). Poor frame rust proofing is another.
Unique to the 2nd gen Tacoma-- poorly designed frame at the engine mounts, tinfoil tailgate.
Maybe the models should be cheaper then for the first 3 years after they come out????
Edit: You've made another point-- Toyota is not really a rung above other automakers.