I don't think this is going to happen. Good developers all over the world know their price, demand it and get what they want because there's just so few of them.

Applying the current exchange rate and American standards regarding time off I'm currently making, as a front-end dev with 8 years under his belt, $60k+ before taxes in Poland, and I'm far from the highest earner among my peers.

Sure it's considerably less than the median US wage in this field, but still it's not like we're orders of magnitude away from you guys.

And note that Poland is a very popular destination for outsourcing.