So I got the wife hooked on coffee. And her friends. And their friends. The problem is that I am not always home to provide for them.
And there in lies the trouble. My wife asked if we could get a single serving cartridge machine. Not espresso, one of those cheap beverage machines like you can get from the big box stores.
I find that unbearable. So I am looking for a Super Automatic that is rather simple to operate and gives an acceptable shot they can build all their various coffee treats from. The holidays are fast upon is and I want to try and be as good a host as possible. And if the coffee is good enough I might even wander in some mornings and push the button. I would like to stay below $1000 and am more concerned in getting a good shot than any fancy features. And don't even think I could try to teach her to pull a shot. I try to keep her away from my gear as much as possible. It just never ends well...
My wife loves her Keurig for the very same reasons you mention. When she has company she makes a big deal out of offering a staggering assortment (well, 4 or 5 different selections) compared to the usual "care for some coffee?". If one wants decaf, another wants flavored, or another isn't sure everyone can still be happy. Even the herbal tea gal gets to join in on the fun.
Sometimes as guys - geeky guys at that - we forget about the presentation as a host or hostess. I can not picture my wife in a million years standing over a Hario looking at a stopwatch while pouring from a Buono kettle x 6. I, on the other hand, think this is a fine way to make coffee - for six. Six women are not likely to patiently wait 20 minutes till the last one is served when the light shining off of the chrome carousel full of K-Cups blinds them from seeing it my way.
Get her what she wants - it's cheap and if she hates it you can return it and pop in a super auto as a replacement.