Whoever said "but what can you see in Spain and Portugal from 30,000 feet in the air?" I now agree with you after thinking about it. Also, by 2015 there's going to be a high speed train between Lisbon and Madrid that'll take only 2h30! haha, so that's really cool!
Also, I never fly the low cost airlines because all the airlines are losing money because of the low cost airlines, so I just go one the big ones, the terminals are nicer, the customer service is nicer, there's food on board almost all flights(refering to in Europe here...not the US!! haha), it's more comfortable, and most importantly if you miss your flight or for some reason don't get on the one that you're planned to get on, they'll rebook you on a different one! Again, all of that was refering to in Europe!!