Here's some good advice for gaming laptops: I don't care how the keyboard responds or the touchpad, just make them usable. Most serious gamers will use a controller or a separate keyboard/mouse anyway. Quality displays are nice, but the chassis itself usually isn't a factor cosmetically (at least for me).
The most important thing to me is cooling and consistent performance. What good is the best specs money can buy if it's cooled by a single low-speed fan and the cheapest thermal compound available? Maximize your cooling potential and keep the gamers happy that they won't have to worry about frying their hardware or experiencing thermal throttling! Seriously, cooling is one thing so many manufacturers and models struggle with, if you can get that right, you'll get a ton of new customers when the word gets out that you've built a stable, cool gaming laptop!