I wrote a really long thing then tried to quote someone and it disappeared :/
Anyway what I was trying to say was yes I agree. However this model is 98% assembled from the factory and its only like 10 mins work apparently to put the rest of it together.
All the good 3d printer sites seem to stock lots of spare parts and can get a auto levelling bed sensor for £20 which I think would solve a few headaches. That must be the upgrading like cars you mentioned
Its quite daunting but its nice going into something new and having to learn