You have two daughters, right?
the Bandai Stormie pictured there is a 1/12 Model Kit figure (which is why it's less than $20 and not $40-50). It's a snap-together kit, not an "action figure" per se.
The Bandai SH Figuarts action figure Stormtrooper will look much nicer as that is Bandai's collector figure line.
In case you didn't hear, 32 concept images from EVII leaked onto the web late last night. Very cool stuff - I was blown away when they hit my mailbox.