tiers 0 to n-1: creating product/features
tier n: release as open source (community votes for license) on day 1
I mean in all honesty if I saw a link to some awesome fucking shit and I saw that it was $500 away from being open source, I'd probably do it. It would probably happen yearly or less, but honestly there are a lot of developers making big bucks and we all know how much certain tools could make our lives so much easier.