Congrats STUTS on finally getting your Yaris. Hope you enjoy it for a very long time as I've enjoyed my Echohatch. Welcome to the family and I know you'll love driving it.
Getting the Club is a smart move, a great visual theft deterent. The only annoying thing (as a friend of mine has one) is that it does take those precious seconds to put it on (and to take it off), especially if you're in a hurry or something. Nonetheless, it's the saying of "better be safe than sorry" and it'd be better with one than without. My Echohatch, however, has no alarm/immobilizer/club whatsoever. The way I think of it, is that if a skillful thief wanna steal my car, he/she can steal it no matter what I do. Besides, if my hatch is stolen, then I might be looking into a new Yaris

If my car is done up with mods and stuff, then I'll purchase an alarm system of some sort. Right now I'm just enjoying it bone stock.