Well, to get back on topic (

), yes, the price of rabbit feed would be very expensive for a rabbit of that size. I hate to think of owning multiple rabbits that size. I once raised pet rabbits and when I dabbled in
Californians (9-12 lb average) I learned few people truly appreciate large lapins. I was mostly into lop-eared bunnies.
Here is the largest of those.
But, considering the "attack" of the giant bunny... I must say the meanest ones I ever saw were small, wiry mixed breeds. Big ones are on the average extremely laid back.