Sure - you can choose to pay for the best or you can choose free. I use Visual Studio 2008 Enterprise, but I use a low-cost SVN repository on the Web with AnkhSVN (free total solution).
I can choose what I want.
And while I usually develop in C++, I do some VB and C# and Java as well. I use Visual Studio for the VB and C#, but NetBeans for Java. I’ll also use Eclipse when I need to do PHP development (I use MySQL, since it’s always available on web servers around the world, being free and all). And for generic HTML I’m addicted to Fusion.
I can use the right tool for the right job - and since I’m the one doing the job, I’m also the one who can decide what IS the right tool for that job. I’m not stuck to just one language or one set of tools. Heck, I could do Flash if I wanted...
I’d also bet that quite a lot of vb/asp/.net/C# is done by medium to large IT shops where devs don’t have a choice about their deve environment, and these large companies start down the MS path without realizing the full costs. I’ve seen it happen with both MS and Oracle products.