Although I would never do this, there is some logic to the notion.
If someone wanted a specific gen part for a franken project and couldn't find one, but also couldn't justify owning a $4k watch, he could buy the gen, take what he needs, and sell the rest without losing money (in theory).
Not the way I would approach it, cuz once I had the gen in hand, I wouldn't want to let it go, but I could see it happening.