As a caveat, I have only used one scroll saw in my life, but here goes.
I use the Hitachi scroll saw from Lowes, and I have been very pleased with it. I was afraid that I wouldn't like it when I bought it, but didn't figure it would get as much use as it has.
Here are some of the things I like about it:
-Accepts both pin end and plain end blades
-tool-less blade change on top and bottom
-Vibration doesn't seem excessive (see my video
http://www.youtube.com/watch?v=D2fOcKe8jxs)
-Comes with built in flex arm blower and work light
-wide range of variable speed control
-sturdy stand
-nice fit and finish
-large, easily accessible on/off switch
-small storage compartment on side for storing blades/allen wrenches
-well constructed tilt mechanism that tilts to both sides and is sturdy
Things that I don't like:
-Had to remove the green plate on the side to make blade changes tolerable
-blade tension lever is at the rear of the saw, and from some sitting positions requires more of a reach than I would like
As you can see, the good outweighed the bad, and for the occasional scroll sawer, for $150 seems to be a bargain, but is often overlooked. Maybe This is just a symptom of my inexperience??? Have any of you more experienced scrollers used the Hitachi?