You really need to just check out all the retailers for a sale. Beware of though understand what you expect to get and insure each unit you look at has what you expect. Don't compare oranges with apples seriously if you look at the Best Buy models you find that the have less and poorly positioned RAM, Slower hard drives that's how the sell you a cheaper machine. You said G751JT look for the letter and numbers after that and source out what features each has. All G751JT are not created equal. Got that all figured out look around for the best deal you can get when your ready to buy or find who has the one you want and just wait and watch for a sale.
a quick
google search finds pages of retailers
G752VY-DH72 Win 10 Pro
512 GB M.2 Samsung 960 Pro
1 TB Samsung 850 pro 2.5 format
980m GTX 4 GB
32GB DDR 4 Standard RAM
Z97 PRO WiFi I7 4790K
Windows 10 Pro
Z97 -A
Windows 10 Pro