I love how you’re tracking its every move and giving us live updates.
Bit you’re right, buying a new Mac does engender a sense of occasion.
Think you made the right choice. Haswell chips run cooler, which is a big deal for longterm reliability.
Adobe bloatware has got so slow of late that you might not even find the iMac that fast – at least if you were using older software on your old notebook. Just opening a PDF in Adobe Reader takes an age nowadays. Lightroom 5 needs loads of computer to run well. But hey, you have that now. Good job!