I'd rather the splash screen than having the program running resident in the background(like MSOffice does) eating up my resources.
Have you actually tried using MSOffice recently? It doesn't run resident in the background for quite a while now, and yet it still starts up orders of magnitude faster than OO.org.
*rant up ahead, totally irrelevant, feel free to skip*
I'm truly disappointed in OO.org. I say this as a formerly devoted OO.org user for 7 years. But when I had to make a quick presentation and only MSOffice 2007 was available in my lab's computers, the first thing in my mind was "why did I put up with that horrible OO.org interface for so long?" Many people may hate the Ribbon, but to me it was completely usable and quick to use, even for someone that has all the keyboard shortcuts ingrained in long term memory. I immediately downloaded the 2010 beta on my notebook, loved it, and purchased it when the beta expired. Never looked back.
OO.org could have had better progress in the 7 years I gave it. I even switched to the ODF format for all that "truly open format" jazz, which in practice gave me so much headache. C'mon, missing lines of text (!!) whenever I print out documents on a computer other than my own? On the *exact same* version of OO.org?! Yes, MSWord used to give me that same problem, but TEN years ago. (And usually the text just moves to another page, not DISAPPEAR entirely. What the eff is up with that?!)
Now that I am back to MSOffice, I'm just glad that I don't have to put up with OO.org's bugs, slowness and UI inconsistency anymore. The only qualm I had was that 7 years of my work would be rendered useless, but guess what, all of my OO.org documents opened up (most of them perfectly) in MSOffice! Did not expect it to, but hey it's there! The same cannot be said of OO.org's support for Office format files (DOC/XLS/PPT is just barely there, and every PPTX I have ever opened was just garbage in OO.org Impress. Not impressive at all (pardon the wordplay, just had to) -- isn't OOXML an open standard?!)
I hope I don't sound like an MS shill -- happy Android user here, and I completely detest Visual Studio, but of out of all office suites, MSOffice is still the best I have ever used.
*end rant*
Going back to your 3-second argument... it was definitely on the order of 15 seconds for me. 15 seconds is an ETERNITY when you have to restart Impress in the middle of your thesis defense.