Nice to [ear more about this story from the golden era at the end of the 90s. Sierra limped along for quite some time after this. I'm looking at you Homeworld 2.
I loved Sierra back during the Golden Age of adventure games. I just played King's Quest 2 over the weekend. Just discovered that some old AGI games can be played (to some degree) on the iPad at http://ipad.sarien.net....whoops...not any more! The legal hounds sniffed them out.
Anyway...I loved Sierra, but after Ken Williams sold the company in the mid-90s, it was never quite the same, and Sierra started stumbling afterwards. Half-Life was their last real big hit that I can recall before the brand finally disappeared.