I think it's much easier to do it at home and not fight the crowds too. Plus you can find lots of free shipping and good deals via the internet. Many stores have the same deals online as in stores too. I got a great camera last year online and it was the same deal as in the store.
I checked these sales out for the first time during the last black friday on Amazon Canada and the supposed deals when I did see some were really tiny amounts off, I did not see any extraordinary rebates.