Honestly I'm very likely to stick with Blaze for the time being, as I've found it easier to follow & understand than Angular (haven't tried React yet).
I just like the sticking with general modularity approach (that really reminds me of Ruby).
I don't think the Meteor proposition is any scarier than getting into Rails, Django, or even Laravel. You're basically trusting a growing ecosystem that will prevent you from re-inventing the wheel.
Rails, Django, and Laravel are all server-side frameworks. You could replace one with another, without having to rewrite any client code.
Meteor is all-encompassing, covering both the client and server. That means you have much less agility in terms of swapping out components, but of course its convenience is unparalleled.
Actually this has me wondering, is there anything else out there like Meteor that covers both client and server development at the same time? Maybe GWT?
I just like the sticking with general modularity approach (that really reminds me of Ruby).
I don't think the Meteor proposition is any scarier than getting into Rails, Django, or even Laravel. You're basically trusting a growing ecosystem that will prevent you from re-inventing the wheel.