The difference in quality between bottom brackets is not that great, especially if we're talking sealed and you end up tossing it after a year or two. The only reason I bought a campag bb was because I am paranoid about deforming my cranks (ISO->JIS). Maybe don't get the 75 or a comparable Hatta/loose bearing if you're going to use it in wet weather/for commuting.
The difference in quality between bottom brackets is not that great, especially if we're talking sealed and you end up tossing it after a year or two. The only reason I bought a campag bb was because I am paranoid about deforming my cranks (ISO->JIS). Maybe don't get the 75 or a comparable Hatta/loose bearing if you're going to use it in wet weather/for commuting.