Chachi, with all due respect I stand by my statements.
I have seen some BEAUTIFUL large and small yorkies on this site (yours included) and there are people who project their own insucurities with there dogs by comparing them to others. They might not admit it but they do. Small to small, large to large, small to large, or large to small. Weither its size (what they expected vs what they ended up with), looks, temperment, hair (cotton or silky), color or what ever. I am not saying they don't love their dogs and wouldn't punch out someone who offended them (LOL) but it happens.
To answer the OP question:
People who choose and actually ENDED UP WITH a smaller yorkie got it because that is what they wanted and preferred over any of the other sizes. Its the same as asking why I got a Yorkie instead of a Chichuaua (or however you spell it).
Its because a yorkie is what I wanted and preferred over all others.