They key to good coffee is that the brew temp needs to be high enough for proper extraction, specifically between 195F and 205F. This is important, because at lower temps the brew can come out with a sour character, because the oils aren't extracted, which is necessary for body and sweetness. You brew will be unbalanced.
Most cheap coffee makers don't brew hot enough. Cortez88 mentioned Bunn. Bunn coffee makers (I can't say which one he has) tend to show up on lists of coffee makers that brew at a proper temp. So that's a good choice.
The best one I ever used was a Moccamaster by Technivorm, but that's not $100. Sadly, it died.
The Cuisinarts generally claim a 200F brew temp. I've used Cuisinarts and they're pretty good for the price. Not Moccamaster great, but pretty good.
A great choice for those seeking a thermal carafe based brewer without a lot of complicated settings. Keep your coffee hot for hours. Find out more now.
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