It's never #OUTRIGHT $200 straight, you have to factor in your miles, free flights, free luggage, discounted rates, air fare clubs etc. You don't magically travel east coast to west coast and back for an easy $200 or less. Although southwest is opening up a new flight pattern from DTW to Mcarran for $99 each way including 2 free bags checked. $198 + tax essentially, no priors, cant really argue with that but that's coming in september.
edit: I have paid less then $200 for flights but prior to the latest gas siege. My trip in september for my friends wedding in vegas I paid $36 each way plus taxes but that still came out to like $150 with luggage.