Are all the MB's at the 'egg geared toward gaming?
Not all of them. Some of them are oriented towards "corporate stable model" (Asus and other's "CSM" models). There are also no-frills lower-end budget boards.
That said, what's wrong with the "gamer" boards? Some of them may have onboard (RGB) lighting, which on many can be disabled in BIOS, but other than that, they are generally built pretty-well, because they are designed for overclocking. Remember too, that the "gamer / enthusiast" market is one of the few PC sub-markets that's actually growing, and most people buying PC parts to build themselves, are going to be gamers and enthusiasts. Most "ordinary" folks, even if they need to buy a desktop PC, will just get a Dell or HP or Lenovo. So don't expect that many of the DIY motherboards to be "ordinary".