Apart from that, we should also note that 32 GB of RAM is indeed an overkill in a gaming laptop, unless you also plan on using some memory-hungry professional software as well. If not, MSI sells several more affordable variants of this laptop, including versions with a GTX 1060 instead of a 1070, differing amounts of RAM, and different storage solutions.
In terms of display size, a 15-inch screen is the sweet spot for a gaming laptop. You can buy larger 17-inch displays, but this can jack up the weight to way beyond 5 pounds. We've seen 12-pound "portables" in the gaming sector that will definitely weigh down your backpack. We recommend at least a full HD (1,920-by-1,080-resolution) screen. Larger displays are capable of giving you higher-than-1080p resolutions, but choose wisely, as a resolution of QHD+ (3,200 by 1,800 pixels, and uncommon) or 4K (3,840 by 2,160 pixels, a bit more common) will boost the final cost twice: first for the panel, and second for the higher-quality graphics chip you'll need to drive it to its full potential.
Still, unless you're attempting to become a professional gamer or get ranked globally in a particular popular title, a 60Hz screen will suffice. Nearly all gamers are still "stuck" with 60Hz displays, after all. High-refresh panels aren't common in budget machines, but they are worth knowing about, as we expect them to trickle down into under-$1,000 machines soon.
Dell Home, via its Member Purchase Program, offers its Dell 15.6" Laptop Gaming Backpack in Black/Red for $28.49 with free shipping. That's tied with our expired mention from four days ago as the lowest price we've seen for this bag. (It's the best deal we could find now by $20.) It accommodates laptops with up to 15.6" screens and features a shock-absorbent EVA molded front shield, adjustable shoulder straps, and a deployable rain cover.