Is the Nexus 7 still a good buy?

How much is left in its product life cycle? By when can it be considered outdated?

I'm considering buying a tablet in the coming week, but I'm not sure which. I really want the iPad mini, but not in this release. If in the next release the iPad mini gets a retina display, its a contender. But not the current iPad mini.

And the lack of apps won't be a big problem for me, I'm just gonna be using the basics.

I've narrowed it down to the Nexus 7 and the Kindle Fire HD.

Now I'm not asking which of these two products are better/worse. Which is closer to being outdated?

In fact, that's why I'm not considering the iPad mini. It's gonna be outdated way too soon.