Using this, I've managed to buy better shoes, toasters, and even a car than I've ever had before, and at less than I would have spent if I hadn't done that research. The car ended up being the cheapest car made by that manufacturer, and I like it better than any other car I've ridden in or driven. (Admittedly, I haven't tried anything over about $50k, but I couldn't afford those anyhow.) I would never have found it if I used price as an indicator of quality, instead of reviews.
The key to reviews is to look over the good reviews. Look at the bad reviews instead. Find out what people hate about it. And then ask yourself: Does that feature matter to me?
My rice maker doesn't make brown rice well at all. Many people complained about that. However, white rice is the only kind I make, and it does a great job on that. So it didn't make sense to spend twice as much money on a better rice maker. I could have spent more money and gotten an objectively better rice maker. But why bother?
So no, I don't agree with paying too much or buying the 'best'. At all.