Ah. Ok. Thank you. I see my reply was sloppy --- sorry. It seemed to me that you were suggesting that being open source plus being productized was required for project success, and my thought was:

1. wait, there are more axes than just license and productization, and

2. there are other values on those axes that can lead to success (not just open source + productized)

Here are some separate axes I see:

* open source (Apache2, BSD, MIT) vs free software (copyleft (GPL, LGPL))

* corp-backed vs not-corp-backed

* community-driven vs closed-style-development

* core devs have a very solid vision of project direction, vs being more open to change and/or direction taken from contributors

* amount of productization: are the main target users the core devs themselves or external users

* overall quality of the language

Some armchair comments:

+ you risk lock-in by going with corp-backed languages

+ you may see more community involvement with free software projects, whereas more corp involvement with open source

+ high productization often means a very low contributor to user ratio

+ although quality doesn't necessarily win, it sure is nice.