Is 'There are a number of expensive jewelry and other duty-free shops, all with goods priced in US dollars (duty-free goods must always be paid for in foreign currency).' a logical precursor to the hypothesis 'Jewelry and duty-free shops are an interesting place to buy goods.'
There are a number of expensive jewelry and other duty-free shops, all with goods priced in US dollars (duty-free goods must always be paid for in foreign currency).###Jewelry and duty-free shops are an interesting place to buy goods.