I would love for the next offering from Yamaha Arranger Workstations to be a space saver. No built-in speakers should give you a lot of room!!

Here's a comparison...

Yamaha Tyros 5-76 (Tilt Screen)
$5499 MAP Price
53.03" L
17.72" D (Very DEEP!!)
5.59" H
35.27 lbs.

Korg Pa4X 76 Tilt and Touch Screen)
$3999 MAP Price (-$1500)
46.93'' L (-6.1")
14.35'' D (-3.37")
4.94'' H (-0.65")
35.93 lbs (+0.66 lbs)

Metal or Plastic Body... As long as it stands up to the gigs, I'm fine with both. They both sound great! I think Yamaha should include a better sequencer to make up for the lack of one in the Montage. Touch Screen or No Touch Screen... both work but I am a fan of multiple ways to get the same thing done!

For the $1500 Price difference, you could get...
Stand (X or 4 Leg)
Case (Hard or Soft)
Speaker System (Mixer, Cables, Cases)
A nice Microphone
A nice Steak and Seafood dinner!!