A few travel tips...
Book economy, then when you get to the airport, ask if they have a "good price" to upgrade - if the flight is not crowded, you can quite often get a First Class seat for $50 (worth the price in free drinks and faster baggage alone).
It's the same with hotels - especially in cities like Las Vegas...
Once you arrive, ask how much it costs to upgrade and often you can get a suite upgrade for cheap - way below the price you would have paid if you booked it before traveling.
Worst case, you still get what you paid for...
ADG