Cheryl, that was a very good exercise.
I have a Canon A550 PowerShot, 8MP P&S, which continues to amaze me with what it can produce.
I must admit, without sounding like I'm skiting, that I picked the difference first up. Better IQ, more DOF and generally a sharper image for the DSLR.
As you pointed out, unless you are a 'pixel peeper', the P & S can give you very acceptable results.
Maybe in the foreseeable future you won't have to cart around 4 or 5 Kgs of gear to get great shots.
Well done.
Kevin
PS: I'm surprised you didn't have a comeback on the addition to my 'Sub-Continental Aphrodisiac" post.