I posted to delicious.com

CTOs vote for open source, but buy proprietary software | The Open Road - CNET News

http://news.cnet.com/8301-13505_3-10094883-16.html

Every CTO that spoke up (and it was a very open forum) said that they are happy to pay for proprietary extensions to open-source software, and criticized pure-play open-source vendors for not providing an obvious, compelling reason to pay: proprietary bits.