I have the one that you cannot buy extra attachments for as well. I have a love hate relationship with it for that. I hate hand washing things and rely heavily on the dishwasher. The mixer makes this impossible. 
I have only one item on my Christmas list as well...the BIG one! 
BTW...evasmama has the funniest avatar that I have ever seen! 
Anyone in the market for the big mama-jamma one - keep an eye out on Amazon.com - DH found mine on there (6 qt) right before Christmas - free shipping - they change deals all the time - but it was from a tip on CC that he found it. It was cheaper than the slightly smaller one at Costco (and Costco had a coupon too, and Amazon was STILL cheaper!) and it was the brushed nickel color I wanted! I think it was around $229. 
I LOVE it, although I still have to reassure her little 4.5 counterpart that I still love & need her, too! 
(is it sad that I talk to my mixers sometimes?)
I only have one too.... so jealous of those who have more!! I need to get another bowl and paddle... having trouble finding them locally though...
Oh! I just got my second 5qt KA this past weekend! My bf and I were at BB&B, and as I was looking through the clearance items I spotted a white KA with a big red clearance sticker on top. Turns out it was a display and they knocked $100 off because it didn't have a box!
The best part was that my bf bought it for me as a belated birthday present. She really puts the "best" in best friend! 
So now I have my older black one, and my new white one. I call them Ebony and Ivory because they mix together in perfect harmony...
I was told that Amazon sells extra bowl for $25 a piece, so I'm planning to get a few more bowls and attachments, although my "Holy Grail" at the moment is the scraper blade. *drools*
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