Personally I would order from
Walmart or Amazon.com before I go and have delivered to hotel or collect from store.
I wouldn't waste holiday time looking.
If you do want to go browse first then use a store like the ones names above, don't use little camera stores. I went in one a few years back for a battery, just tried ripping me off, about $70 +tax for a £10 battery.
My Brother tried to buy a Digi SLR from one a few years back, they had one in the window he wanted at a good price. One member of staff took his credit card while the other went to get it from the store room. My Brother signed and waited, he came back to say they were out of stock but had this other he would discount to the same price, this was worth about half the original camera. My Brother had a nightmare getting the money refunded. It was just a con they had mastered, anyone easily intimidated would have had a right job getting a refund.