I love the PowerSupport crystal screen protectors. They are great in terms of giving you the same feel as glass, and being ultra clear. However, their price is killer. I feel like I am shelling out more money for a piece of plastic than a well engineered case of some sort. Especially as I look at the PowerSupport crystal iPhone 4 pricing and the iPad 2 pricing ($30!). Has anyone run in to other favorites that are less expensive?