+1 to upkeep/maintenance, this really is what separates developed countries from developing, not just in Europe but anywhere in the world. Any third-world country can build a shiny new showpiece airport, the real test is what it looks like 10 or 20 years down the line.

That said, if finding a competent tradesman is becoming harder (demand exceeds supply), their income will eventually increase to an equilibrium point where it starts making sense for them not to move to Germany/UK.