No one said otherwise. I prefer Linux not because it's open source, but because it's better than Windows, at least for my needs and uses.Linux can do anything windoze can do and much much more!
You only have the right to receive support for whatever was promised to you. If you buy something that advertises Linux support, then you have the right to that support. If Linux is not mentioned, then Linux support is not one of your rights.You are BUYING their CARD, so you have RIGHT TO RECIEVE SUPPORT FOR OS YOU USE! Linux is MAINSTREAM OS!!