I'm not a "newer is better" person either
I test everything under scrutiny before I even accept or reject them
I review all updates before installing them
when Office 2007 came out, I was using 2003. My work got 2007 installed and I HATED IT.
When Vista came out, I HATED IT.
So when Office 2010 came out, I read of improvements to it, so I gave it a try.... I was thrilled that it was what it was said to be and it wasn't a clawsterfawk like 2007 was. The ribbon was better but still took a little time to get used to it, but the time it took getting used to was VERY VERY short, to my surprise... the reason for using 2010 was newer/improved format support, better features, better stability, and 64-bit capability
Same thing with Windows 7 when it came out... I was skeptical... but my friend said, it's great, give it a try... it's not dog shit like Vista... so I did... I was sold!
now looking back at older Windows and Office after being used to the great improvements Windows 7 and Office 2010 brought, I dislike using any of the older shit
and I did try 8 and Office 2013.... hated it!