Irish,
I too have invested in property overthere, not by the airport but downtown where prices are still cheap compared with the west but still i would have never been able to pull a deal on a CSA salary.
You mentioned things like gasoline at 1.1 euros/liter, well that's EU average unlike the wages though.
You can have a very decent life at CSA as long as you conform to czech standards where having a car is still considered a luxury, but suggesting that one can have a better lifestyle than in many western countries is an overstatement.
Having said that living there on a western contract is a different story....