Commas and Adjectives

Which version is best?

1. Both results involve markets where consumers have heterogeneous tastes and some, “small”, consumers buy just one good while other, “large”, consumers buy two.

versus

2. Both results involve markets where consumers have heterogeneous tastes and some, “small” consumers buy just one good while other, “large” consumers buy two.

versus

3. Both results involve markets where consumers have heterogeneous tastes and some “small” consumers buy just one good while other “large” consumers buy two.

I like version 1, because it replicates the pauses I would make when speaking. I don't know which the grammarians would choose.