Where's the evidence for that?

Perhaps if the price is $500+, but at $200 it can be an impulse buy.

Why is the onus on me to prove it is one way or another?

The information is available online. Do you really think people walk into Best Buys before they do their research? Perhaps if money is no object. But for most people, it is, and therefore research is pretty imperative.

Don't assume everyone is like you.

I do most of my 'research' by browsing in shops. I often go into places like Best Buys, Frys, looking for 'stuff I probably want'.

Also most people have credit cards. Most people often don't worry about money when purchasing things. They worry later when they're in debt.

The threshold is different for everyone, but I would say that $200 is below the threshold it makes sense to bother researching all that much if it looks like it might be useful. No point spending a couple of hours, extra petrol etc to "save" a few $.

Totally agreed. When I was shopping for a netbook I often saw people in stores who wanted a netbook, asked the store employee what they should buy, and then bought one. The same goes for camera's. Why should this be different for tablets?

I take it you've never worked at a major electronics retailer. People will drop several thousand dollars on impulse if a slick sales person does a catchy demo.

Unless it's an Apple product.