You are completely mistaken. The OP is not comparing "only bitcoin". The OP is comparing "exchanges", each with their own features, and costs, and benefits, and issues. I'm not comparing bitcoin to litecoin, I'm comparing MtGox to Vircurex (and to BitStamp, and to BTC-E) and saying use of one is worth more dollars than the other. And yes, really.
Is that so? Perhaps you are falling back on preconceived notions.
Thanks.