Open source projects die too, and it's not always because there are no users. Sometimes there is no one willing to maintain the project. My point is that "closed source software dies" isn't a valid argument for not using a product.
Indeed. My email client of choice (Thunderbird) "died" this way last year. Except of course I'm still using it, and it's still being maintained by community effort for high priority bugs. So I don't see your point, actually.