you seem to say that windows is objectively good and worth the money, irrespective of their circumstance. otherwise, what could "wouldn't change your bias" mean?
I'm not saying anything objective about its worth. Under some circumstances it has a certain value, under other circumstances it has a different one.
By bias I meant that you flat out said that Windows and a few other MS products aren't worth the money and don't understand why anybody would use it. Now sure, it's possible that after careful consideration you decided in a completely unbiased manner that the products you listed aren't worth their cost under any circumstances but I'm sure you'll agree how that might sound incredibly biased to a casual observer.
edit: well except sharepoint like you said. That thing is just bad and I've no problem admitting to a bias against it.