When BTC were at .13, people didn't look at them and think they were crappy.  They thought they were a deal.  But nothing is stopping someone from talking about how much the price per bitcoin is--awareness of mBTC just gives people who are trying to sell things for less than $130 a way to meaningfully price them.

You can talk about the BTC price when you are discussing how valuable bitcoins have become, and you can use mBTC when, you know, you're trying to actually use bitcoins for something.