Well, if you use the .22 for a self defense gun, I could see the extra bulk of the laser. And, hell, it's YOUR money, after all.
Me, I bought mine to carry in a pocket for my outdoor knock abouts, fishing, that sort of thing. It's pocketable and quite accurate, makes a GREAT pocket "kit gun". That's my personal niche for the gun, and a plinker. I have no intention of using it for self defense or concealed carry. I have center fire handguns for that. YMMV and to each his own.
The addition I'm waiting for on the little toot is a threaded barrel for a suppressor. The barrel comes off with a single hex head bolt. A suppressed SR22 would be pretty neat.
I'd up the 200 bux for the stamp on that.
On lasers, have you looked at the Armalaser? They're affordable, a little over 100 bucks, and seem to be quite well made. A friend has one on a 9mm. He likes it for home defense and general tacticool shooting.
It is kinda neat at the indoor range, I'll admit.
http://www.armalaser.com/