The problem is that we have really no no-frills airlines going to MCO from MSP. If we did, there'd be a lot more competition. I know AirTran and ATA come out of MSP, but they, too, make a stop either in Chicago or Atlanta. And they really haven't been much less than NWA's nonstops - not less enough to make me try them.
Keep in mind that each airline has a formula that computes their cost per mile to fly a route. I can't remember what the number of cents per mile it costs NWA, but I remember computing it and discussing it with CarolMN and for NWA from MSP-MCO, it's like $256. So it costs the airline, NWA, with labor, maintenance, fuel, etc $256 per person to make that flight even break even . I hate to spend more money on flights myself, but taken in that context, you can see that ifyou can geta flight for less than $256 per person, you are ahead of the game.
That's not to say a sale won't come along. But the stinky part with sales is you have to hit them at just the right time. I am happy with the $230 pp I got on a non-stop with very good times for my December trip.
Good luck to you all! Now if I can just get a good price on my July trip for my Pampered Chef conference in Chicago I would love it. Right now, the cheapest MSP-MDW is $203! I can't believe it.