In product (rather than buyer) terms:
Don't equate Yellowtail with two buck chuck; the former is bottled, made and sourced from a single region by a family company, with an emphasis on consistency and quality.
This region has been growing grapes and making wine since the 1960s or earlier.

The latter is just repackaging bulk wine which might be okay, but will be sourced through brokers and can come from anywhere and needs to be transported halfway around the world and then bottled.

There are too many risks there in quality control terms to make these comparable.

If you are implying that Yellowtail is bought at WalMarts as a token purchase with no interest in the quality of the product, then let's see how this plays out. I'd expect the end product would be similar to the wines I've seen sold in Australia for $2 (or given away as freebies).

It's not horrible, but not at all interesting and it will eventually get the drinker drunk... one of the main points of cheap plonk!