Earlier quoted context omitted.
What is the draw of the Steam machine though? They say the price is comparable to similarly specced PC. So why not just buy/build any mini PC? There's plenty of options for that
Some people really don't want to spend time exchanging parts when the memory they buy turns out to be incompatible or that the GPU doesn't fit the sleek mITX case. There's a lot of research to ensure all parts are compatible and optimal when building a PC - for some it's time that could be better spent on using the PC instead of building one.
Dont get me wrong this looks very a nice product, but its nothing revolutionary.