This is exactly the situation addressed
by the person who first said, "The more the merrier!"
The size of paintings is a big scam in the art world.
Paintings generally price higher by size regardless of the content.
This means an artist makes potentially more money if he uses a bigger
canvas no matter what the canvas is.
this is the same thing as cab driver who takes you the long way around
in order to drive up the fare on the meter.
the important thing about a paint is scale and content, not size. if
the subject is complex it may need a large canvas to clearly delineate
its elements. Or if a piece has a large scale (which is not the same
as size) then it can handle a large size.
you can have two paintings on identically sized canvases-- but one has
a scale that makes it look much bigger than the other. this is the
subject that can tolerate a larger size.
it is more important to look at the painting and see if it does
something to you.
a painting must be an engine generating a type energy when you look at
it. that is way to judge, not size
A lot of people get paintings just because they want something that
"looks" like art. perhaps they want to impress their associates that
they are the kind of people who can appreciate art. such people will
tend to get large paintings with no content. such paintings will tend
to be very depressing after a while.