Not offended in the least. I'm only participating in this "conversation" so that Stephen doesn't have to. Sorry if you didn't like the jab, but you can only throw around "arrogant", "bad faith", "misleading" and "failure" around so much before it comes back at you. You haven't offered anything constructive in your rant that helps anyone out, so really no reason to keep it up.
Always looking for people's business when our solutions meet their needs. As a consultant (or whatever role you are), it's your job to evaluate and consider each technology. If you don't think Microsoft's products are the right fit for technical reasons, then that's the advice you should give you customers, regardless of hurt feelings. However, in my experience, many of our products do offer the capabilities that the my customers need at a price they can handle. Match up BizTalk with virtually any other EAI/B2B/BPM product in the space, and compare the price.