I am seriously consider to buy an Italian violin in HK but would like to know which shop is trust worthy.  Besides, which violin string is better for HK weather?

I'm not good at picking violin but people told me that Italin violin provide a better sound.  I have a violin (~$3,000) 5 years ago, the sound not up to my satisfory, not very good.  

I am new to this instrument.  I have learnt it for few months before and wanna to pick it up again.  But I judge the instrument from my hearing.  Am I a freak?

Any good suggestion and the price for purchase the violin for a serious adult student.