you are more than likely correct Mamapan - as I say most of my info is second hand. I didn't know you could cook cakes in it - make the batter yes but didn't know about cooking it.
I sort of had the impression (in very simplistic terms) that they were a multiblade style blender with a thermostat that went from freezing (for sorbets etc) to cooking (sauces etc) - don't know whether they stop "churning" during the process. I suppose I really like the idea of what they could do but just couldn't see the $2K value - that just seemed sooooooo much

If it can replace your icecream maker, your soup pot, your blender, your mixmaster, your slow cooker and gave you the ease to cook all of these things without standing by to stir etc then maybe. I know they do a lot of cooking parties to display them - would be interested to see how much is done in the thermomix and how much in the stove.

ETA just had a look at the website and they are really into focusing on getting back to basics with machine that does all these things quickly but from raw ingredients rather than using jars etc. they have a whole list of things that it does - I liked that it cleaned itself and there is obviously a new version - the steamer/bowl attachment I hadn't heard of before. Yes it certainly looks like it could replace a lot of appliances especially in a small kitchen and do a good job at the same time