I wont disagree but this is a factor in PC performance.
Every time I have had an issue starting to develop my PC start-up time increased over time. And I only have 9 processes running when I uncheck "Display processes for all users". So Im not loading any unnecessary programs.
The more processes & applications you have running, rebooting becomes more important to clear memory. It is the ONLY way to completely clear memory.
With all the postings regarding PC's beginning to crawl that is a main reason to reboot to properly diagnose problems. Do a search on "Why reboot a PC".
When I was at GE and you call in a problem, the first thing the Help Desk would ask you to do is reboot your PC. It is all due to memory leaks in every application on the market today.
I keep my PC cleaner than most as I have batch file utilities that run and the last statement is a reboot statement. They are run daily.
Read this first statement.
http://blog.chron.com/helpline/2009/09/why-rebooting-a-computer-fixes-some-problems/If you dont want to reboot, fine. Dont do it just 'cause of my post.
Im just curious. Thats the way my mind works. :)