BB30 can perform flawlessly, but hey it's only in my personal experience, and after all...what do I know. If it hasn't worked for you personally, then I can understand one's reluctance. But I do not believe the widespread use of the BB30 to be another bike industry conspiracy to fleece the consumer. If it was me, I'd get the BB that had the most visible logos....
I have never owned a BB-30, but have fixed many creaky ones for customers, and they do require more maintainence than a Hollowtech II BB.