Wow. $3?

So, you just lay the coffee thing in it, and then poor hot water through it?
I suppose the ones you see around just have a water tank and warm it up as well, am I right? Do they do anything else?
You need to put a filter in it and it makes only one cup. I find it better than owning a drip machine.
Yeah, the drip machines are essentially this. They heat the water and run it through a larger version of the same filter, and heat the pot as well.
The Melitta is nice if you have an air pot or electric kettle...
BTW, the air pot is on all the time and it's well insulated. Since it's completely sealed, it doesn't lose water. My electric kettle had to be turned on when you wanted hot water.