I'll freely admit before I read Valve/Chet/Gabe's thoughts on this I was sweating it. I have thousands of dollars invested in Steam that if Valve changed hands it would affect me just as much as it would affect a shareholder, maybe more so as I might have more invested in Valve than your average shareholder.
After reading the article I have a different understanding of how Valve's management feels.
For those who still have doubts, I think what they might not be understanding is that Valve/Steam is Gabe's baby/child/creation. And no matter how much money a person offered for your child, it would never be enough. The only way I think Gabe would ever consider selling Valve is the same way a parent would consider putting their child up for adoption and that would be when the parent Gabe) felt that someone else could do better for Valve than they can. Since Valve is not only doing "fine" under Gabe & Co., but it's flourishing and is the pioneer in gaming going purely digital.
Being both a parent and a mod developer who has been approached before into selling my freeware work, I think I know exactly what Chet/Gabe is trying to say and I have a much higher degree of respect and admiration for Valve than I did before.
Xbox Live Ambassador (RET) Founder of PERS0NA, a non-profit scientific paranormal investigation society "American by Birth, Gamer by the Grace of God"