Why not refrigerate everything?

I live in an apartment and the fridge is supplied by
the landlord but on the small side to say the least.

However, I've been thinking abt buying a small freezer
to supplant the fridge and give me the ability to store
more foods in bulk. I live alone so don't need a HUGE
freezer..... maybe 7 cu foot.

But I had what may be and even better idea.... what
would be wrong with refrigerating EVRYTHING except can
goods?

I could buy another fridge with built in freezer and
get additional freezer space..... but also get
additional fridge space where I could store boxes of
cereal, oatmeal, and other things you normally don't
think abt storing in a fridge.

What you think abt my idea? Do many out there put
things in a fridge that doesn't normally go in
there..... granola bars, cereals, breads?

Or am I best to just buy a small freezer ONLY and
forget abt the extra fridge space?