As in: things take up space and if you consider the cost of that suddenly everything becomes expensive.
I while ago I wanted to buy a threadmill - I think I could get a decent one for €1000. BUT it would occupy two square metres in my apartment, so the space for that item is worth €5000 in my area.
€6000 for a threadmill? I think I'd rather use one of the two gyms available within a five minute walk.