i'm going to go of the previous brown townogy of cars someone mentioned.
Consoles can be like cars, say a Volvo C30. It's reasonably priced, and all around is study. It's not so terrible that it's just can't be used, but obviously it isn't the sportiest or best car out there in the world. It fits the family lifestyle, and can still pack quite a punch when it needs to. You can also buy little trinkets for it which enhance the style or actions of the car, but in the long run, it'll still be the old reliable Volvo which'll last you years to come, as they usually don't get recalled and replaced too often.
However, PC's are much more diverse, one could go for a smart car type thing, very friendly to use, but has little cargo space, and just isn't really the best vehicle for everything out there.
Or they could be like a Ferrari, very finely crafted on the outside, with a fair bit of performance, but overall have a poorly designed layout. They run haphazardly and don't have a very smooth ride to them, but they're still lovable and you're usually not regretting buying one.
Then you can have the lovely Aston Martin, a machine of pure elegance. All the thought and time was put into this machine, and it was finely crafted in every aspect. It runs well, gives plenty of performance, and packs quite a punch. The boot will also have a lot of storage space, allowing you to use it more diversely as well. It's a great vehicle for anything.
tl;dr
Consoles are a cheap, and well running alternative to PC gaming. While not capturing that aura that the biggest machines may have, they still provide the entertainment you want, at the price of reduced visual qualities and performance, Yet, they're handled and thought of ingeniously, and built with mass produced care, like our friends at Volvo.