As long as your not forced to use it what is the problem. My pc is mainly for playing games so I probably won't use an app store for much, if anything. My laptop runs Linux (ubuntu) and it has a centralized download centre which is essentially an app store but doesn't look too appealing to the eye, but its good at what it does. It should be a good thing really as I've spent more time in my life uninstalling and repairing computers due to people downloading spyware/malware/virui from shady websites or misleading links hopefully an app store of sorts would help reduce this happening. Really though it all depends on how its implemented but we need more info.