I'm having way too much fun with my iMac, and there are hundreds of apps and demos I like to try. Some I keep. Some I toss. However, I've got quite a stack of them installed, and many more to try. In the "Windows world", installing all these apps, even if uninstalled after, would cause the system to get slower and slower and slower... until finally you format the drive and re-install Windows to get some performance back. Supposedly Macs don't have that issue, but I'm just wanting to confirm that this is the case. My iMac is running so well, and I don't want to compromise that in any way. Does it make no difference what all I install and/or uninstall? I'm using App Zapper when I uninstall to cleanup the extra files. OSX doesn't have a "registry", so I know that won't become a problem. Will OSX get slower, the more apps that are installed? Thanks.