Sam's Club offers its members the Ezviz 16-Channel 1080p Security System for $499 with free shipping. (Non-members pay $49.40 extra, but you can grab a 1-year membership bundled with a $20 gift card for $45.) That's the lowest price we could find by $301. It includes 12 1080p cameras with 100-foot night vision range, 16 channels, and a 2TB hard drive.