have you guys heard of
www.nowinstock.net
if you register an account there, they will send you txt messages when Snes Classic or most other coveted items on the internet go in stock
Thats the only way I was able to get a Classic NES multiple times
Amazon kept sending txt messages to my phone whenever they received a shipment
Mind you, they would only make those allocations available to Prime members.
You can sign up for a 30 day trial for free for Prime... I think that ultimately will be your best bet. You have to click on manage alerts on the site and add which items and how you want to be notified.
Also make sure you select the correct region (USA or Canada)
theres differences between Best Buy.com and Best Buy.ca or toysrus.ca and toysrus.com
They have trackers for Walmart Best Buy Amazon Toys R Us and Target
I also suggest that you login and set up 1-click settings for checkout because you literally have only 30 seconds to get in and out
doesnt hurt to have other accounts for family and friends