I'm gonna spend some time in Vancouver and would like to make a informed decision on regional prices

hey guys

this is my first time in the USA and my first time in Vancouver and I'll be trying to get myself a nice gaming laptop but have heard that a big difference of price may happen based on region. For the next few months, I'll be visiting Alaska, Vancouver, San Francisco, Seattle, San Diego e The Everglades in Florida and would like to know from people who knows the prices around these regions which one is better to buy electronics in general?I think it's worthy of mention that I'll be at the Everglades about 3 times during November and December, kinda close to the Black Friday, hopefully that will give me a better price? Or the prices are affected only during 31th of November and get back to normal right after? Anyways, would love to know where and when it would be the best option to buy it. Thank you very much!

if this is not the best place to ask this kind of question, would appreciate if anyone could tell me a better subreddit to ask this kind of stuff