Personally, I think most games these days are the middle ground because of so much standardization (controls, camera systems, genre conventions, etc.) and how easy it is to copy what is popular and apply those now agreed upon standards (not to mention how costly it is to deviate from those standards and fail). Let's call that middle ground "good" or whatever numerical value you want to assign to it. Whatever that is, we are drowning in a sea of it. While not necessarily a bad thing, I wouldn't call most of what we see memorable either. It's probably why we are often drawn to worse scoring games as they are trying something different and either fail it or punished critically for it, but will at least be memorable.