Be careful with novelty TLDs, these aren't capped and some owners take full advantage of it to extort clients: they offer really cheap domains for the first few years, and then massively hike the price. Some businesses can't afford a domain change and are forced to pay up.
Generally, my advice would be to stick to country code TLDs.
>Generally, my advice would be to stick to country code TLDs.
Why? Unless you're talking about the country code of the same country you are operating in, (mis)using ccTLDs is basically gambling your domain's survival on the generosity of the country or even the very survival of the country itself. See Mali taking back .ml domain for a recent example.
Just stick to .net, .org or maybe .com for stability sake with only slightly higher but capped pricing.
I look at the five year or ten year registration rate. Also, I register it for the max duration possible, which is five or ten years, so at least I won't get extorted in that time.
Generally, my advice would be to stick to country code TLDs.