Yes you do
In the list of what you said, what is the RH AS ONLY feature?
All of them are available to the enterprising admin who wants to add it himself. They are just packaging it. None is proprietary to RH, and if RH decides to add a true proprietary hook for a specific app, and then I chose to use that app, then I would do so knowingly.
But RIGHT NOW, there is nothing so special that I can't do it myself. I just choose to pay them to do it.
I also choose NOT to tweak it myself. As TonyTib pointed out, we got a business to run. As I add specific tweaks they are more and more likely to lock me into something (I consider) non vanilla and painful to migrate away from.
Note: I don't consider modifying semaphores that type of tweak. I'm perfectly happy have that stuff in the boot scripts (or wherever else my adin has put it). Alto, you always have to modify the atd launch for multi-cpu.
