I had a pesky telemarketer call me on my cell-phone from Programmers Paradise a day or so ago. As you probably know, they primarily sell Windows developers tools. She wanted to know if I had 5 minutes to respond to a survey. When I said "No", she continued on asking what tools I used, what tools I needed, etc. I really didn't have time to talk so I popped off with "I do open source development." I heard an "Oh, thank you for your time" and she hung up. I was pretty proud of myself, almost like I just skated on jury duty or something, but I realized that I really just preyed on her ignorance of open source. I can think of at least 5 things she could have sold me if she was savvy. Without digging very deep, some .NET open source development needs, guess what, Visual Studio, Windows, SQL Server, IIS…think MSDN sale. The reason I was on their list at all was I bought MSDN from Programmer's Paradise a few years back and didn't renew it last year. She found a ripe sale in an open source developer and didn't have a clue.