It's academic, because I'd never be able to afford one, but I wouldn't buy one even if I could, for exactly the reasons you give.
I think boycotts are a powerful thing if enough people boycott companies that are involved in unethical things or whose major shareholders are, people and companies might think twice about their behaviour. Mandela always said that the boycotting of South African goods and services played a significant role in bringing an end to apartheid.