By virtue if being smaller it does yes - there's an argument for using as small an oven as possible for sure - but the return on investment of that for having multiple different sized ovens is bound to be longer than the product's lifetime.
(I broke my oven door, rather than pay £150 plus labour opted to pay £280 for a new oven. That was a Bosch, certainly not the cheapest possible.)
(I broke my oven door, rather than pay £150 plus labour opted to pay £280 for a new oven. That was a Bosch, certainly not the cheapest possible.)