Have 2 Solos...should I buy more? Not sure how low prices will eventually go on the bundles or Solo itself or how long till they run out. At some price point they will be good for parts too, as we know. Opinions needed...asked my wife, she says no (to everything) LOL. Also, is the GPS Shield V2 necessary, in a chat with Gio at 3DR, he says yes, and there are no coupon codes so they are full price.