HP dm4 2180 / 2191 us why not?

With these specs:

the HP dm4 2191us

Intel® Core™ i5-2430M Processor (2.4GHz)
4GB installed memory
640GB hard drive
SuperMulti DVD burner
14.0-inch diagonal HD BrightView LED-backlit Display (1366 x 768)
HP TrueVision HD Webcam with integrated digital microphone
HP SimplePass with integrated fingerprint reader
802.11b/g/n WLAN
Digital Media Card Reader for Secure Digital and Multimedia cards
6-cell 55WHr lithium-ion battery; Up to 8 hours of battery life
Dimensions 13.42" (L) x 8.98" (W) x .098" (min H)/ 1.27" (max H) (4.4lbs)

Whats not to love at a price under $450? (Was able to buy it for $380 at Staples)

How about the HP dm4 2180us

Intel® Core™ i5-2430M Processor (2.4GHz)
6GB installed memory
640GB hard drive
SuperMulti DVD burner
14.0-inch diagonal HD BrightView LED-backlit Display (1366 x 768)
HP TrueVision HD Webcam with integrated digital microphone
HP SimplePass with integrated fingerprint reader
802.11b/g/n WLAN with WiDi(
Digital Media Card Reader for Secure Digital and Multimedia cards
6-cell 55WHr lithium-ion battery; Up to 8 hours of battery life
Dimensions 13.42" (L) x 8.98" (W) x .098" (min H)/ 1.27" (max H) (4.4lbs)

Under $600?

I find the 2191 a super bargain since it comes with a 4gb dim and I was able to snag DDR3 2gb ram for $6.50 shipped off ebay.

ended up with a $386 laptop that is 1 LB lighter than my DUal core I had.

I like the aluminum case too

There is a keyboard problem that has been talked about but an update on HP from Dec 2011 fixes it.

Had mine a week and I do heavy computing, working great.

The battery so far lasts me 5 to 6 hours.