Land Rush for an entirely new suite of keywords ;-)
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Big business associated with "pets" and other terms used for animals might fall away to terms such as "animal companion".
Some people think that the term "pet" is politically incorrect.
http://www.cnn.com/video/#/video/us/2011/05/09/dnt.pet.politically.incorrect.CBC?hpt=T2
Time to go out and register "AnimalCompanionSupplies.com"
I doubt that very many people are going to start searching for "animal companion food" but. the people who adopt these new terms will be, in my opinion, the same folks who buy high end goods and stuff a lot of items in their shopping carts.

J/K
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lol how very odd... maybe four legged friends will be a good way to go

I love my dog to bits, but I don't reckon he'd be easily offended if I use the word "pet" for him. Some real crazies in this world.
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running out to register FourLeggedFriendsSupplies.com
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lol, don't forget eight legged for mad people who have pet spiders

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AAAGUH! What is this world coming to???? These are the same people who have "Holiday Trees" in December.
Thanks for sharing....I feel a blog post coming on.Â

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You know, you have brought up an interesting area of keyword 'research', that of predicting trends and future niches.
I read a lot of tech and science blogs for this very reason and with several years worth of journals you can try and spot what's going to make it down into the mainstream marketplace. The fringe science of today is the gadget of tomorrow!
Buying up things like quantumcomputerreviews[dot]com or (even more outlandishly) robotinjurylawyers could put you in good stead for later in life

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Interesting idea. Thanks for sharing it!
Did you register RobotInjuryLawyers? That sounds like a really good one!
Language and products are changing all of the time. There is probably still a lot of money to be made in domains.