It's not about not "bothering" to try it. The casual/gaming/whatever market is big, but the business market is HUGE. Businesses don't like having to upgrade for obvious reasons (downtime, cost, compatibility issues etc.), and when you hear nothing but negatives about a new version of Windows, it's very easy to understand why people/companies are deciding to skip it. I am one of those such people (run my own small business). I have something like 8 machines here with 7 on and the idea of having to pay to have them all upgraded (which is no small amount), especially when the upgrade is to what appears to be an inferior product, is just a big no-no for me. The whole Metro fiasco (yes, it's a fiasco) is a real issue for people/companies in my position. If MS insist on pandering to trends (tablets etc.) then they should simply have released two regular versions of Windows - Win 8 Business and Win 8 Metro. Business for people who want a streamlined no-nonsense OS and Metro for people who want fancy interfaces. And NO it's not feasible/realistic/acceptable to have to funk around with some "hacks" that get the classic shell back within Win 8.
Also don't forget that for a lot of us this is more than just worrying about a few games and the Ninite pack running or not running after you've upgraded. I've got many suites of software that are REALLY finicky when it comes to OS and driver support etc (some actually require certified drivers and OS configurations for their support network to agree to help you....). so having to move up to a new OS is a horrible experience at the best of times. Something ALWAYS breaks and that costs a lot of time and therefore a lot of money.
I will probably upgrade my home PC and laptops to Win 8 but 7 is staying on my work machines and laptop for a good many years unless I can be convinced that it is 1) not going to cause problems and inefficiencies 2) actually WORTHWHILE over 7. (Boot-times of 5 seconds less or whatever is completely meaningless for most users).
Just wanted to get the other end of things out there for those who don't understand why Microsoft have ballsed up here. Ultimately this is no different than the XP > Vista mess. I have skipped a generation of OS for as long as I can remember and this is no exception.