And how did you come to the conclusion that "missing high quality linux desktops" are the thing "holding back" Linux?
Is this based on some statistical work you did?
If we talk about feelings - did you ever have the feeling that corruption, lobbying and blackmailing could play a role?
BTW - why do you think Linux is missing high quality desktops? I am working with very high quality Linux desktops since many years and I wonder why people are using such low quality desktop OS that are sold commercially.