I'm all for the wild explosion of new tech, that said when the time rolls around to pick a toolset for building a new application I'll invariably do a step back and I'll pick something that has been around for a couple of years.

The reason is fairly simple, new stuff usually contains tons of bugs and it remains to be seen if it is still going to be around a few years down the road.

I'm a coward that way, but when my income is on the line I don't want to be beta testing someone else's code without having a very good chance that the problem I'm trying to find is mine and not some bug in underlying code.

For hobby stuff and learning I love to play around with new things, as soon as it is 'business' I'm a lot more conservative.