Where to buy headphones with cost benefit in Vegas or Miami?

[z2013]

Hey,so im new member and i was thinking on getting Koss PortaPro and a Sony MDR-V6,
they look like headphones with a good price,and since where i live they are overpriced, Vegas and Miami could be
my best opportunity to have one of those...
 
Anyway, my question can be stupid, but those headphones...they are easy to find,besides from local musical stores?
 
My plain is to go at Best Buy, Walmart, Target, they sell those headphones?

 

And what about big shoppings like Sawgrass Mills in Miami, or Las Vegas Premium Outlets(North and South)and the Fashion Show Mall? Any chance?

 

 
I hope you guys can help me, and that this post doesn't have any error,but i get it if there is no reply.

 

[z2013]

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