Greetings,
I founded that the Sp2 is not the only update for security and bugs on the system. If you check well, the downloads in all the sections; still have more files on it for updates. Recommended to check the Internet Section. I haven't check all of them; just to warn you. In internet there's an update if you have Sp2, that could let any intruder get in your pc; if you don't possess a; hardware firewall, or system. Also, updating will cause your system against corrupted or unwanted data and it may run faster.
Yeah, you'd be surprised to know the amount of M$-related "0days" that appear every day...
Surely, I do unsderstand that MS has to work hard everyday. But we can create new tech while they're occupied in OS bugs and systems.