Does 3% improvement in overall survival justify taking breast cancer medication for five additional years?

I’m not sure how I feel about the latest news about the latest breast cancer therapy news.  You can bet the drug company that makes Tamozifen paid for this study.  Is the cost–and taking a serious drug with serious side effects for an additional five years–worth a 3% gain in overall survival?  Read this and watch the videos if you like and see what you think: