We haven't been as much separated from the west as party leaders could wish. Many Polish companies have sold services to the west those days (even all serious industry was state owned) and not much have change in this matter - our economy is closely bonded (good for us) to the surrounding world , especially remaining part of EU. Answering on your question - we had pretty much good idea how life on the west looks like - from other hand, difference in standard of living was astonishing - big enough that for many peoples life of beggar in Hamburg was serious dream not mentioning about 18 hours shifts in factory located in Chicago. Even after joining to EU living standard improved significantly we still have serious difference. To illustrate this - my wage when i've worked for GE (was god one in local conditions) it was about 40-50% of this what GE is paying to engineer on the same position in US - not even mentioning difference in taxes.