Chefs Catalog has 3 styles of 6qt KA's on sale, $100 off, free shipping, $50 cash back, and a 2 year free subscription to Food and Wine magazine. The Limited Edition makes me wish I was more of a baker, it's a beauty!
She who dies with the most toys, wins.
I'm the opposite of gadzooks, I hate the bowl lift and wouldn't trade my tilt head for anything. The newer KA's are not as hearty as the old ones. If you can get one that is 20+, do yourself a favor and get that one.
I've used both and I much prefer the tilt head. I like that I can leave the beater on the mixer and remove the bowl if I need to, put the bowl back and continue mixing. I do this sometimes when mixing big batches of cinnamon sugar cream cheese, I get the bottom scraped well. I don't use my beater blade for this because it is so thick that I'm afraid of breaking the plastic beater.