The Problem With Palettes

I have a love-hate relationship with makeup palettes.  When I see a good one, like the new Bobbi Brown Washed Rose Palette (currently available at QVC), I want to put it on my wish list.  But then I remember something.  I've had a few palettes in my day, including last year's Limited Edition Bobbi Brown Mauve Face Palette (pictured above).  The colors in the Mauve Palette were all beautiful and worked well on my complexion.  But in the end, I never used the lip colors.  Sure I suppose there were times when I was getting ready that I'd fish out a lip brush, or apply the color with my fingertips, but it always seemed unnecessarily messy and complicated.  Plus, how many times do you apply lipstick and/or gloss during the day?  I'm not going to toss it in my bag and take out with me just to re-use the lip color throughout the day.  And since most palettes that I've seen don't come with brushes that are even close to usable, you'd have to throw in a travel brush kit in your bag just for shadow and cheek touch-ups.  Seems like a lot of makeup to carry without having the essentials (liner, concealer, powder).  Is it worth it to buy palettes if you're not going to use a third of the products?  I can't decide.