Poll: Would you work with an alternative development system?

Are you willing to try the less popular development platforms, such as Alpha Five and Agile Platform? If not, what is the primary reason?

I've written a lot about the OutSystems Agile Platform lately. There are a ton of other non-mainstream development platforms out there (e.g., Python/Django, Ruby/Rails, Alpha Five), and yet, many developers seem shy about trying these systems. I'm curious to know why this is the case. I suspect it is a lack of time, fear of the unknown, and concern about their career opportunities. Are you willing to try these less popular platforms?