It wouldn't be the first time a local price was lower than Amazon. A few months ago, I bought a circulating pump cartridge. I found a cheaper local source that was a 15 minute drive from home, instead of waiting 6-8 days for delivery. The pump was part of my heating system and this was in the middle of some very cold weather, so those 6-8 days would have been 6-8 days with little heat.
Costco often has some good deals on TVs and other electronics. Amazon is hit and miss on prices. Items that are imported by Amazon itself are usually a good deal. Some big online stores sell through Amazon and can be a good deal. Other items are often sold by third parties and can sometimes be ridiculously expensive. I always compare prices on Amazon.ca to Amazon.com and other sources.