Keurig Machine

I have the new Keurig coffee machine and I love it. But - and there is always a "but" - if I am going to be home for awhile and will be drinking a few cups of coffee it is real expensive to keep making a cup at a time. Because of this I have my old coffee pot out on the counter too. This way I can brew a pot for those days when I am home for an extended time and want to drink coffee. How do you handle this? Don't you find it expensive with the Keurig?